@KenLee @gabenzeke To be fair, all of the photo threads and the folks perceived as gurus in this "cult of the small gun" have repeatedly said a larger cartridge with a like-bullet (ie small eldm vs big eldm, small tmk vs big TMK, etc) will create a bigger hole in the critter, and with photos to illustrate it. All of those photos are posted to show "excessive damage", and the move to the smaller cartridge was to accomplish "enough" damage for a fast, efficient, reliable kill. If a bigger hole qualifies as an "insurance factor", then as far as I can tell it's 100% certain the larger cartridge, given the same bullet, does typically provide some amount of insurance strictly from a terminal perspective. So, from what I can gather the hard evidence DOES clearly support there being at least
some "insurance factor" with a big gun. The key is whether that is 1) partially or entirely offest by greater difficulty to put the shot in the right place with a harder-recoiling gun, 2) enough of a bigger hole to provide a meaningful degree of "insurance", 3) is the big gun actually using a bullet that makes a bigger hole, or is it using a bullet that produces smaller diameter wound channel, in which case the smaller cartridge may actually provide more insurance, and 4) if using a larger cartridge with a highly damaging bullet introduces other negatives, such as not having an acceptable amount of critter left after making such a big hole in it.
This is all ballistic masturbation to a large degree, but did want to point out that the evidence I have seen posted on this site, in all cases, does support bigger cartridges making bigger holes--but only if the same bullets are used. The typical statement of a small gun making "as big a hole or bigger" is focused on larger calibers only when they are throwing bullets designed to produce a narrower wound.
This is exactly correct.
Obviously you can get a bullet in a larger caliber that will do far more damage than the best .223, .243, 6.5 Creedmoor, etc. can do, this is just basic physics. At the level demonstrated with this deer hit by .338 Lapua Magnum, clearly you
do have more leeway for shot placement, and this isn't even the best performing bullet for that cartridge.
(This isn't my pic, I'd give credit to whoever it came from but I forgot the name, so if that's you, thank you.)
However, most of the people who decry the use of .223 or whatever small round would
never advocate for a round this destructive. Which is reasonable for this weight class of game, but frequently they wouldn't even be in favor of a bullet that did only somewhat more or as much damage as 77 gr TMK. Somehow the concept of greater insurance is supposed to be achieved with a round that doesn't actually do as much damage.
And if they did favor bullets that did more damage, the notion that a 3-4" wide wound channel - as is produced by 77 gr TMK at common hunting distances - is inadequate for medium game, just comes off as inherently ridiculous. There's never been any convincing justification provided as to why this would be in any way deficient for responsible hunting, and if it is, well, then that takes a whole lot of .308 (or larger) loadings off the table as well.
Then there's the constant changing of goalposts, saying, oh this evidence doesn't count, oh well this new evidence doesn't count either, so on and so forth. The proponents of small calibers have to meet an evidence threshold that basically can't ever be met, because the 'traditionalists' will always respond with something like "well what about the theoretical one that got away that you didn't post" which leaves the former with the goal of practically trying to prove a negative.
Anyways all that is to say I can appreciate the greater potential of larger calibers, and if I were personally hunting for game with size and temperament to scale, I'd probably prefer something big for such purposes too. And if you just
like using big magnums to shoot medium game, well, I can't really fault you for that too much
as long as you use an optimized projectile because a heavy fragmenting bullet in those calibers kills stuff really well and
does give you a greater margin for shot placement. (Whether that's canceled out by poorer shooting in the first place is a necessary consideration, but one that may be hard to quantify.)
Where I see a lot of problems is in how the performance of something like 77 gr TMK for most game would never be judged as insufficient by many traditionalists were it not for that fact that it's a .223 "match bullet", which somehow changes things so that the same wound channel is less effective; and the questions of "but why would you use a smaller caliber" when the question ought to be posed the other way
around: If the smaller caliber already offers terminal performance that is more than good enough, why
wouldn't you take the smaller caliber with all the other requisite advantages it affords?