Although I said in my first post after returning from last weekend’s patterning trip that I hadn’t managed to shoot all the patterns I wanted to, I did make substantial progress this week. I’m certainly going to have to find some more cartridges to test, given that the list of patterns left to shoot with the shells I have is beginning to get quite short.
At this point, all the patterns are counted and all of the data is collated and I’ve confirmed – if not actually learned – one or two things about each of the cartridges tested. It feels like it’s been a huge effort – perhaps it has, or perhaps I’m just tired – and I’m ready for a break once again. Hunting tomorrow evening will not involve the use of a pattern plate!
Currently, I’m not happy with some of the analysis I’ve written about the cartridges. Apart from anything else, I feel I’ve been lazy as far as the technical side of the analysis goes, so I’ll be re-visiting what I’ve written this week at some point very soon to distil the useful information from the sundry words and add the more specific technical analysis which has been a feature of my previous writing.
For those of you who don’t have time to read each of the analyses in turn, here’s a summary of what I’ve covered this week.
Bornaghi “Extreme”
My opinion of the Bornaghi cartridge was moderately improved by further testing, but the cartridge remains well away from being one with which I would choose to hunt. Better-performing alternatives are more-readily available and cheaper to acquire. I had always thought of Bornaghi as producing top-quality cartridges (and the components may be well-chosen and of high quality) but at the end of the day, performance is king and the 14g shell just doesn’t make the grade. I do continue to appreciate the level of detail that Bornaghi print on the cartridge case – in case one were in any doubt about the shell’s contents and capabilities.
Lyalvale “Supreme Game” 9g/#6
I like the idea of a 2″ cartridge – it is a pleasingly-unusual historic curiosity but nonetheless appropriate to the .410 given the origins of the gauge. I remain interested in obtaining and patterning Lyalvale’s alternative 9g loading containing #9 shot and investigating its behaviour.
As much as it would be nice to find a reason to keep a box or two of the Lyalvale cartridges “in stock”, they are not, a practical cartridge for hunting, particularly in a 3″-chambered .410 where the performance issues created by firing short cartridges in long chambers are clear from the data. If I were a more talented shot, I might justify using a handful of them whilst decoying (the shot size is more than sufficient), but they aren’t “general purpose”. Testing them has strongly suggested that a large “jump” between case and chamber-end has a significant and detrimental effect on performance.
Eley “Fourlong” 12½g/#7
For this round of pattern testing, the “Fourlong” cartridge is my personal “winner”. I don’t view subsonic or marginally-supersonic muzzle velocities as any kind of handicap and – on the basis that the long-term average pellet counts for the ¾-choke at 30 yards stays within the region of the 120 pellet mark – I think I’d use these cartridges more often if I was sure that ranges were going to be at 30 yards or under (e.g. decoying). Once again the wisdom of keeping muzzle velocities (and, one assumes, pressures) well below modern expectations is proved.
I’ve been impressed by Eley’s heavier loads (e.g. the 19g “Trap” cartridge) but there’s something about putting that much shot in a .410 that seems a little excessive. I remain hopeful that I will find a true 40-yard cartridge, but if I don’t, then doing 30 yards well with a genuinely light loading, rather than hoping for 40 yards on the basis of luck may be the more satisfying and appropriate option.
Eley “Trap” 14g/#9
Cartridges where one has such a genuine excess of pellets that the most concerning feature is how large one can make the pattern are few and far between. The nearest most folk get is with a cylinder-choked gun and a #9 cartridge on the skeet field, though the Italians go one better with their Dispersante cartridges which contain a device to further spread the pattern. Nonetheless, this is the case with the “Trap” cartridge and our theory that shooting many chokes at the same distance would give the most useful picture turned out, I believe, to be true. Whilst this series might usefully be supplemented by some 20- and 25-yard patterns in future, we established that pattern sufficiency is hardly an issue where #9 shot is used in the .410, but that it’s ability to kill the target remains very much in doubt.
Eley “Trap” 14g/#7½
The patterns shot with the #7½ version of the “Trap” cartridge confirmed that it is probably the best-balanced cartridge yet tested by the SmallBoreShotguns team. Conventional wisdom has it that #7½ shot probably runs out of “oomph” at around 30-35 yards and this coincides with the range at which the best patterns shot from this cartridge fall below the minimum required density. Whilst the heavier, 3″ version of this loading provides more pellets in the pattern, it doesn’t necessarily give any extra range, as its somewhat patchy performance on longer-range birds in the field has demonstrated.
Although perhaps contradicted by later results from tests of the 2″ Lyalvale cartridge, we could not deduce any negative effect on performance from this 2½” loading, compared with it’s 3″ sibling, in spite of the shot column of the former “jumping” from case mouth to the end of the chamber. In fact, the shorter cartridge gave marginally better performance – which is as yet unexplained.
What’s next?
As I said at the beginning of this post, I’m going to start looking around again for some more cartridges to test. This may take some time, but there are plenty more brands in the UK market which I need to find and obtain. In general terms, I believe the previous “priority list” is now reduced to the following:
Gamebore “.410 Hunting” 16g / #7 [3″] (or any / all shot sizes available)
Gamebore “.410 Target” (a.k.a. “Skeet”) 14g / #9 [2½″] (useless for hunting, but I have a point to prove / refute)
Any 3″ cartridge not mentioned above containing #7 or #7½ shot.
Any other 3″ cartridge.
Lyalvale 2″ / 9g / #9.
Any of the Lyalvale 14g [2½″] loads (including the #9).
Any other 2½″ cartridge.
Anything else.
Additionally, of the cartridges so far tested, there are many with which I’d like to do supplementary testing. It is not my expectation that shooting any of the following patterns will alter the conclusions I’ve drawn from the data collected so far, but they will help to provide a broader data set upon which to base general conclusions and future analysis.
Bornaghi “Extreme” 14g/#7: 40-yard patterns with ¾-choke.
Eley “Fourlong” 12½/#7: 30-yard patterns with other chokes.
Eley “Extralong” 18g/#7: 20-yard pattern with half choke for completeness.
Eley “Extralong” Subsonic: Full choke patterns for to rule out the remote possibility of 40-yard performance; further patterns to sort out 30-yard results for 0.015″ / 0.020″ chokings.
Eley “Trap” 14g/#9: 20-yard pattern with ½-choke with for completeness.
Eley “Trap” 14g/#7½: 20-yard pattern with ½-choke with for completeness; cylinder, quarter and full choke patterns with to produce a complete data set.
Eley “Trap” 19g/#7½: Cylinder and quarter patterns to complete data set.
Additionally, I would like to record confirmatory patterns to strengthen confidence in the existing data centered around the 0.015″ and 0.020″ chokes which have been most extensively tested and seem to be the most effective overall. Since the list above probably accounts for another 30 patterns and confirmatory testing the same again – without accommodating the testing of any new cartridges – it may be some time before they are all ready for analysis!
I don’t know if what I’m about to say constitutes a significant climb down from a position I’ve held for a long time, or whether this is simply a restatement of my opinion which allows for one or two edge cases but doesn’t change the fundamentals. The fact that I’m not yet sure suggests that I need longer to ponder the question and see where I end up after analyzing the data I’ve gleaned from last Sunday’s patterning session.
The the issue at hand can be expressed as a simple question:
Can a cartridge containing nine grams of number six shot be of any practical value to anyone?
My long-standing answer to that question has always been “absolutely not” but I’m forced at least to reconsider the answer in light of the data I’ve generated for the Lyalvale “Supreme Game” cartridge of the aforementioned specification.
In defense of my previous experience, I should mention that one has to accept a number of potentially-controversial assumptions to get to any other answer than “no”.
Breaking The Mould
It is simply impossible to adopt the methodology we’ve used elsewhere on this site to analyze the performance of the Lyalvale cartridge. Comparing the performance of the 2″ shell against a 120- or 140-pellet minimum standard (in a 30″ circle) is facile when the loading averages 102 pellets on in the case. Even if it produced rifle-like performance, it could never achieve what was asked of it.
This means that, to give any kind of commentary on the performance of the cartridge, we have to change the parameters of the experiment. Allowing for a much more accurate shooter, we can show that a smaller number of pellets in a smaller effective pattern area give pattern density equivalent to our 120-pellets-in-a-30″ circle standard. (Detailed discussion and the mathematics behind this will be shown on the extended pattern test page for the cartridge when our analysis is complete.)
We can therefore show that, provided the shooter can achieve more than twice the degree of accuracy required for the use of cartridges deemed to produce minimally-sufficient 30″ patterns, the use of the 9g / #6 loading on small-to-medium game may be acceptable at ranges as great as 30 yards!
30-yard pattern shot through the ¾ choke of the Yildiz .410 using the Lyalvale Express “Supreme Game” 9g/#6 shell (20″ circle).
Of course, many mere mortals cannot achieve anything like this standard of shooting!
Two-Inch Edge Cases
This isn’t the appropriate place for a detailed analysis of the Lyalvale cartridge’s performance (see the link above). However, the headline figure of 53 pellets falling into a 20″ circle at 30 yards gives an equivalent pattern density within that area of 119 pellets in a 30″ circle. If we consider the latter a “killing” pattern, then, if the quarry is covered by the former pattern, it should also be killed.
For most of us, this approach will be inhumane. Inhumane because our shooting skill is not sufficiently great; inhumane because we will most often have more appropriate tools available than a 2″-chambered .410. It is extremely difficult to find circumstances in which one would have to rely on this cartridge to the exclusion of anything else.
That said, for “rifle-type” shooting at targets which are still and very close to the shooter, the “Supreme Game” loading may be an appropriate cartridge. Provided ranges really are short and the quarry stationary, this cartridge will “do the business” so to speak – though for most such situations (e.g. rats in the yard) the alternative loading of this brand, containing 9g of #9 shot may still be a better choice.
Is that a climb-down? I’d like to think not and although the mathematics doesn’t lie, I still maintain that as a loading, 9g /#6 is of almost no use to almost anyone.
The creation of the first tranche of pattern data for the 2½” Eley “Trap” cartridge last weekend offers the possibility of a direct comparison between the behaviour of 2½” and 3″ cartridges which are essentially identical.
Allowing for the fact that differences in case capacity require either a different powder, or a different quantity of identical powder, the two versions of the “Trap” cartridge appear to be of common construction: there is no difference in wad, shot size, shot composition or crimp. We assume that the primers are also identical.
Thus, provided we compare the cartridges’ performance by percentage and not by absolute pellet counts, we can determine whether the simple fact of increasing the height of the shot column improves or degrades performance.
In fact, in the case of the Eley “Trap” brand, there is little difference.
The data collected at the time of writing gives a 42.5% average performance for the 2½” version of the cartridge fired through the 0.015″ choke of our test gun at 40 yards, compared with a 42.0% average for the 3″ version. The 0.020″ choke produces average pattern densities of 47.0% and 46.0% for 2½” and 3″ shells, respectively.
The SmallBoreShotguns team have not yet collected sufficient data to draw a firm conclusion for all chokings and distances, but thus far, we can say that if a longer shot column does significantly damage performance, it is not (yet) demonstrated by the Eley “Trap” loadings. In fact, the loss of performance in the 3″ cartridge is so slight that it will easily be outweighed by the greater number of pellets in the case, as the absolute pellet counts presented in the data clearly show.
Note:
We do not consider the Eley “Fourlong” (12½g / #7) and “Extralong” (18g / #7) to be equivalent-except-for-case-length: the former has a fold crimp; the latter a rolled turnover crimp.
The afternoon started well, with blazing sunshine and very little wind and I managed to rattle through 20-25 patterns with very little difficulty. Later, the wind picked up and the rate at which I could shoot them slowed drastically. Even the heavy plywood of the patterning box, now peppered with plenty of lead shot, could not counteract the sail-like behavior of the paper in the breeze and my attempts to shoot the last few patterns were frustrated by the whole edifice toppling repeatedly.
In the end, I gave up. I have enough patterns to keep me busy counting and analyzing data for most of the week, if not longer. The other patterns I had hoped to shoot will have to wait for another day.
No Country for Old #7’s
A quick wander round the farm before I started provided a single shot at a wood pigeon departing post-haste. In failing to account for a straightforward, 35-yard going-away bird which produced a beautiful explosion of feathers as I hit it, but which – once again – flew on, I can only remind readers of my previous posts exploring the differences in presentation between the approaching driven bird and the more commonly-encountered going-away bird.
As I continue to gain experience with the .410 and the smaller-than-I’d-like shot sizes I’m attempting to use with it, I find myself less and less convinced that it can ever be a general purpose gun.
I am not a talented shot, by any means, but I am on form at the moment and I’m failing to bag easy birds that I’d reasonably expect to have folded in the air with a larger shot charge. The Yildiz will kill (and has killed) birds at 40 yards (and probably a little beyond), but I’m increasingly persuaded that whether it will do so with the shot sizes required to maintain a “killing” pattern is – at medium-to-long ranges at least – heavily dependent on the presentation and line of the bird and – to some degree – on luck.
I can offer no evidence for the following assertion since I have recorded none, except what is written in this blog. However, I seem to recall that most of the longer clean kills I’ve made using #7 (or smaller) shot, both in the the .410 and in my 28 gauge (where I’ve switched to using #7 in the last year or so) have been crossing or approaching birds. Departing birds have required the attention of a priest more often than I’d like.
Of course, that may sound like a terrible excuse for simply bad shooting – I can only speak as I find – but I do feel if today’s bird had been coming towards me, the Eley cartridge (18g/#7) would have accounted for it as expected. Likewise, if I’d made an identical shot with 32g/#5, it would undoubtedly have come down.
Two Islands of Thought
I’m increasingly interested in the significance of head / neck strikes where the use of smaller shot is concerned. I continue to suspect others’ success with the smaller sizes – one acquaintance bores us endlessly on a well-known forum on every conceivable subject, provided it’s #7 shot – is down to very high pattern density and amenable presentation.
If this is the case, then the use of smaller shot sizes in a .410, incapable of firing enough pellets to achieve those very high pattern densities, may be sub-optimal. It may be the case that relying on apparently below-minimum pattern densities with larger shot sizes is a better approach in the small gauges.
That said, one can achieve high pattern densities with even smaller shot than #7. Are there in fact two “islands” of terminal performance, one favoring pattern, the other penetration, with the “best of both” option in the middle failing to outperform either? Do we fail to see these “islands” in the larger gauges because genuine pattern insufficiency is almost never an issue and they overlap each other? Is this why I read – horrifyingly – that “serious high-bird .410 shooters” use Winchester cartridges loaded with American #4!?
As yet, I remain undecided, but I am starting to consider whether the evidence collected thus far is starting to support this theory. M(any m)ore field tests will be required to prove or disprove it.
Oh well. I’ll just have to go hunting some more…
Branchers
I was kept company today by two noisy juvenile crows. Obviously, they were in the process of fledging and had reached the stage of being “branchers” where they were building up strength in their wing muscles by flapping short distances between the outer branches of the tree they were inhabiting, approximately 20 feet above where I’d placed the pattern plate.
I’m sure some readers will question why I didn’t shoot them on sight. I asked myself the same question.
I’m sorry to say that as I encountered them, the possibility of conducting a slightly unethical experiment as to the efficacy of #9 shot briefly crossed my mind. Since this was only 30 seconds after I’d shot and failed to kill the wood pigeon that got away (and that with #7), I decided that I wasn’t prepared to risk wounding them for the sake of my curiosity, pest birds or not. After that it seemed a little cold to simply invent another reason to shoot them having decided the first wasn’t sufficient, so I left them to mind their own business and went away to mind mine. I’ll shoot them next week instead.
Pattern Analysis
Thus far, I’ve only been able to complete pellet counts on a single cartridge, partly due to an intolerant spouse who complains that the sound of pattern paper being moved around is too noisy against which to watch television.
The cartridge thus far completed is the Eley “Fourlong” 12½g/#7 and (without having spent much time thinking about it carefully) the data shows that it performs well in percentage terms, apparently confirming that subsonic velocities, short shot columns and fold crimps are all beneficial. Unfortunately, the small number of pellets in the cartridge limit its usefulness to sub-30-yard ranges, but it is both consistent and impressive, given that other, much heavier loads cannot match absolutely its performance.
There certainly appears to be some merit in the argument that 2½” shells often perform as well as 3″ shells in the .410.
More will follow during the week as I complete the pellet counts and publish the data / analysis.
Observing that today’s experiences in the field somewhat undermine the post I had planned to write this evening is unavoidable, so I do so first, before entering into any theoretical discussion.
It was not an unpleasant afternoon. Warm, bright for the most part and somehow quiet, it was valuable to escape the noise and excitement of the small people in the house and enjoy some solitude. I went out with gun (the Yildiz), bag and cartridges and set off to do the rounds of my usual trio of farms.
By the end of the afternoon, I’d managed to down two birds at a ratio of 1-for-4, do a bit of pattern testing and reconcile some theoretical knowledge with practical field experience, so it could be described as a productive trip, even if the shooting could have been better.
The Endless Argument
I suspect that many of my readers have probably visited a shooting-related internet forum at some point. Almost anyone who has will know that every few days or weeks, someone raises the question of using clay cartridges for shooting wood pigeons (or other quarry). As much as they might pretend otherwise, the reason they ask is because clay cartridges are cheap.
These inquiries usually prompt the latest round of the of the unending furious argument discussion as to what is the smallest shot size appropriate for shooting wood pigeons. “Debates” flare up between those who argue that #7½ is perfectly fine and that we should all stop fussing and “learn to shoot” and those who think that larger shot – #6, #5, etc. – is more appropriate.
It sounds daft to say it, but after shooting for some years, I think I finally have a handle on both sides of that argument and can at last point to a real reason for the difference of opinion.
In spite of having worked out the numbers as far as pattern density, pellet energy and penetration go a long time ago and concluded that #7 is probably the smallest general purpose shot size appropriate to pigeon and other medium game birds, I’ve never really been able to adequately explain why many hunters claim (and demonstrate) success with smaller shot sizes (and not just #7½).
Consideration this week of how #9 shot might be made to be useful in the .410 has finally “cracked the nut” of the “smallest shot size for wood pigeons” problem also and the difference, I believe, is the direction in which the bird is flying.
Yes – it still sounds daft. Let me explain.
Hedge-walkers & Decoyers
The two sides of the argument are reasonably well demarcated – “clay cartridges, yes or no?” The division of folks’ hunting practice between those choices almost certainly isn’t, but I think the groups broadly align with two camps: hedge-walkers, who refuse to use the smallest shot sizes, and decoyers, who don’t.
Some folk – myself included – just aren’t that good (or that lucky) at pigeon decoying. Either they lack experience / expertise, or their permissions aren’t of the kind which attracts wood pigeons or allows them to be easily shot if they do. One way or the other, they get to the point where their usual means of bagging birds is to walk the hedgerows and woodlands, disturb some birds and pick them off a few at a time.
The so-called hedge-walker’s usual shot is at a going-away bird, 30-40 yards out by the time they’ve raised the gun, accelerating away from them. For perhaps obvious reasons, these are the folk who like tight chokes and heavy loads of large shot: they need all the range they can get to kill the bird and doing that usually means driving big pellets up the backside of a pigeon, through the middle and into the vital organs.
Now consider the decoyers. These are the folk who have the right working pattern to chase pigeons around their permissions for a few days to find where they’re feeding and the experience to know how and where to set a hide to make sure that they shoot 100 of them when they do finally bother to get out of the car.
The decoyer’s usual shot is at an incoming bird, 15-30 yards away, which they’ve had a few seconds to see approaching and onto which they can accurately place their shotgun’s pattern. Choke is probably less important here, as is shot size: pigeons are not armored and their heads and necks are generally very exposed as they glide into a decoy pattern. All it needs is a pellet or two to impact with those areas and the bird will fall, dead, to the floor.
Given the ranges under consideration, with the bird approaching, there doesn’t seem to be much of an argument against using #7½ (or smaller) shot, since the amount of penetration required to destroy the brain or the arteries in the neck is in the order of millimeters rather than centimeters. Even breaching the chest cavity via the breast will only require a centimeter or two of penetration (as opposed to perhaps 10cm for a departing bird shot through the rear end), which ought to be in reach of even the smallest shot sizes at decoying range.
If you aren’t yet persuaded of the merits of this argument, consider the cock pheasant. These are big birds, some of them substantially larger than a wood pigeon and yet most of us would be reasonably happy shooting them with #7 shot, when we’d feel that #6 was as small as we’d use for wood pigeon. Why, exactly?
Consider that a driven pheasant is similar in presentation to a wood pigeon landing in decoys: they’ll usually arrive from in front of the Gun, target bird identified in advance and they will – being overhead – present their head, neck and chest to the shooter. Again, little penetration is required to get through to the vitals. Change the presentation to “going away” and an experienced Gun will think twice about trying to knock down a long cock pheasant with the shotgun equivalent of a Texas heart shot and a load of #7.
The Defeat of Hope by Experience
One of the birds I bagged today and another that I didn’t bag were going-away shots. Having seen the 14g version of the Eley “Trap” cartridge print a good (68%) 30-yard pattern during my testing, I decided to try them on the birds if an opportunity presented itself. I put the “Trap” cartridges in the ½-choked barrel and some of the “Extralong” #7’s in the other, in case the former proved inadequate.
Let’s just say that my personal view of the use of #7½ shot on live game was not improved by today’s experience, whether or not I’ve now understood the reason for peoples’ differing experiences using it.
Usually, when a bird drops a big cloud of feathers and flies on, it means that the shooter missed behind. Certainly that’s usually the case when it happens to me. Today, though, I took a shot at a departing bird, perhaps 30-32 yards away, partly denuded it and caused it to barrel into the floor before recovering and flying off. The bird in question was flying directly away from me, level, at head height – there was no lead to miscalculate and no way to miss behind.
In fact, I hit the bird reasonably well, I believe. I saw the shot ruffle through its feathers and the reaction certainly suggested a hit. Its subsequent recovery and departure suggested the shot hadn’t hit (or reached) anywhere vital. My gut feeling was that it was too far out for the #7½ shot to penetrate through from back to front. Of course – I’ll never know, but it doesn’t fill me with confidence.
The other going-away bird I shot today was quartering slightly and went down flapping with the shot. I used the other barrel just as it hit the floor to kill it. I can’t draw any firm conclusions from this experience either, except to say that it adds to the general impression I’m getting of #7½ shot being adequate only for certain presentations and certain ranges. The .410 is the first gun in which I’ve allowed myself to use #7½ and I’m probably hitting about the same number of birds as I do with any other, but wounding significantly more than I do when I use #7, #6 or #5 (in the .410 or otherwise).
On the other hand, the incoming bird, which I took at 20-25 yards with the “Trap” cartridge, came down cleanly. It was these two shots, taken together, which led me to the realization I described above.
The Usefulness of #9
It now seems a little rash to argue that #9 shot could be used in any game shooting situation, when clearly the efficacy of larger shot is already in question. However, if we have identified incoming, decoying birds as being particularly vulnerable and the penetration required to kill as being much less than would be expected of a “general purpose” cartridge, then we might allow that birds within – say – 20 yards, could be shot effectively. Certainly the increased pellet count and short range ought to make the likelihood of a pellet penetrating one of these particularly vulnerable areas more likely. Here’s an example pattern:
A computer-generated image displaying the kind of pattern which might be thrown at 20 yards if 14g of #9 shot were fired through a gun giving a nominal “Modified” performance at 40 yards.
This is a dense pattern, through which little could escape. Furthermore, the pellet marks displayed are red which, in the software that generated the image, indicates that their kinetic energy will still exceed 1 foot-pound. This should be sufficient for standard through-the-breast penetration to the vital organs of, say, a wood pigeon, without having to rely on lucky CNS strikes.
I am in no hurry to conduct a live test, so to speak, but we may ask, theoretically: how do we make the most of this somewhat limited load?
Widening the Net
I’ve said previously that measuring 20-yard patterns with the “mainstream” cartridges is something of a waste of time in the context of finding a 40-yard cartridge. Even the poorly-performing throw basically all of their shot into the circle when using the chokes which have typically given best performance (0.015″ / 0.020″) in the Yildiz. The better-performing cartridges do not fill that circle, but leave a border of empty space around the edge.
Let’s replace the #7 / #6 in those cartridges with #9. Even allowing for greater shot spread, via proportionally greater deformation of smaller pellets, the pattern at 10 yards would still be the size of a dinner plate. This would be extremely difficult to work with.
Furthermore, if #9 runs out of energy at 20 yards, then even if a cartridge printed 120 in the circle at 40 yards, there is no point in keeping the pattern together out to this distance. Although we’d have pattern sufficiency, we’d likely pepper the quarry with shot without killing it. (We prefer peppering it after it’s dead, then eating it – Ed.) Again, shooting at 20 yards with “40-yard” chokes requires extreme accuracy.
It therefore makes more sense to optimize the pattern for 20 yards rather than 40 yards. It would be logical to use lighter chokes and ensure an excellent short-range pattern, filling more of the circle in the 10-20 yard range which is the only distance available to us where the gun might prove effective.
The response of the SmallBoreShotguns team to that conclusion is that pattern-testing the #9 cartridges at 10, 15, 20 and possibly 25 yards, beginning with the test gun’s lighter chokes, is the right approach.
The Reverse Case
It’s fortuitous that I’ve also bought the Lyalvale 9g / #6 cartridge this week. I hadn’t expected to, but it provides a nice contrast with the approach outlined above.
If 9-14g / #9 is unbalanced by having excess pattern density then 9g / #6 is unbalanced having excess pellet energy. To get the best of the former, we should loosen the chokes and increase the size of the effective pattern, knowing that we cannot shoot beyond 20 yards; we must do the opposite with the latter cartridge.
It is the admittedly very old, traditional loads like the Lyalvale cartridge which have led to the “fashion” (if you can call it that) for most fixed-choke .410’s (and particularly singles) being over-choked. Even a 100% pattern with this loading, containing 102 pellets, cannot meet at any range the minimum required pattern density in the standard circle – there simply are not enough pellets.
However, pattern density equivalent to 120+ in the standard circle is achievable if the size of the circle is reduced. Throwing all the of the pellets in the Lyalvale cartridge into – for example – a 20″ circle (44% area of 30″) will offer both density and energy sufficient to kill small-to-medium game at whatever range it can be achieved – provided the user is accurate enough to employ an effective pattern less than half the usual size. This leads to guns cut with as much choke as possible, whilst still leaving an aperture for the shot column to exit the barrel.
Very often this “super-choke” doesn’t work – over-choking the gun blows patterns and fails to achieve the required pellet count. Even if it does work, the ranges at which such a tight pattern is achievable are limited.
A near-100% standard pattern is achievable at 20 yards by most cartridges through most chokes, but much of this will be outside an inner 20″ circle centered on the same point. Even with a genuine nominal “Full” choke, only c. 90% of the pellets will remain inside the standard circle at 30 yards.
Given that pellets tend to be approximately Normally-distributed in a shotgun pattern, this would be borderline-sufficient for a 20″-diameter effective “pattern-inside-a-pattern” with the Lyalvale cartridge, but the author has not yet heard of any .410 gun, choke and cartridge combination which achieves this level of performance. With lesser performance, the area in which the pattern density meets the minimum standard becomes smaller and smaller, until it disappears entirely.
It is for this reason that the .410 carries a reputation for being a “shot rifle” rather than a wing-shooting gun.
So Which Approach Is Best?
In the hands of an expert shot, forced to choose between shot that is too small or shot that is too large, there is probably no difference. Such a person will be used to restraining themselves in other gauges and will quickly and instinctively work out the maximum capable range of the choke / cartridge.
For a person shooting exclusively at static targets, the 9g / #6 cartridge is probably best if the gun will be treated like a rifle – provided one knows where the pattern is printed relative to the bead, that is. Because of the Normal distribution of shot around the point of aim, it is most likely that some pellets will always strike in the center of the pattern, out to significant range, guaranteeing a hit if the gun is properly aimed. Effectively, one ignores the existence of a pattern altogether.
For most of us, and for any instances of non-static targets, lighter loads of smaller shot and self-restraint where ranges are concerned are probably easiest to manage. 20 yards is not far, but it’s enough to reach an bird directly overhead at the height of most large trees or birds decoying well. This is usable, if we’re careful. (#8 and #7½ should reach, broadly speaking, to 25-30 and 30-35 yards respectively.)
My current preference is still for the 3″ cartridge giving the best performance with #7 shot available. As time goes on, I find it less and less acceptable to fire #7½ at living creatures – but then I do not decoy birds well.
A Final Thought
Although there is enough wiggle-room in everything that has been said above to make an argument for these cartridges having extremes of shot size and load weight to be employed in the field, I strongly urge readers not to attempt to do so.
Given that it is usually much harder to find 2″ shells and 2″-chambered .410s than all other kinds in the modern market, one would have to purposefully avoid the use of a more appropriate tool in favour of a less appropriate one, by choosing to hunt using such tiny loads or cartridges. They are, undoubtedly, historically significant and theoretically interesting, but their employment for taking game – at least of the common kinds in the UK -is almost always unethical and should be avoided.
To emphasize: this is not the same as swapping a 12 gauge for a 20 gauge shooting a lighter load because it is a “challenge” or somehow fashionable. Neither gun, loaded with a middle-of-the-road shell will be remotely marginal on any common game at all reasonable ranges.
A 2″ .410 is marginal however and – to my mind – incapable of the performance required to humanely take wingéd quarry. Even some more heavily-loaded 2½” shells seem likewise incapable.
With my scepticism concerning the use of #7½ shot growing stronger with experience, I suspect that the 3″ version of the Eley “Trap” cartridge will may not remain my preferred cartridge for use in the Yildiz much longer.
