Any of that with fast twist heavy for cal 75-90 gr?
Or what I’m really asking is, any of that with sd .25 or higher with rapid expansion type bullets?
As that’s what you are looking for to make the penetration depths for ‘big game’ as ‘not marginal’ for front half shooting. It’s a formula here that works, not the headstamp or the bullet diameter.
The ole ~40-60gr stuff ‘not marginal’ for coyotes, wolves, maybe fawns & antelope but would tend to create some ‘neck shooters’ from ‘experiences’ of being ‘marginal’ for bigger classes of game.
Gotta still make it far enough into game to be ‘not marginal’. The only way to do that with rapid expansion bullets is be higher than the 20th century norms on sd which we compensated for back then by making tougher bullets so they held together to make it deep enough, but at the expense of being able to ‘grenade’ well.
When we get all that figured out the partition success makes a lot of sense. Retain sd to get adequate penetration from one half of bullet, and grenade on the other half for the faster kill. But now we simply add more sd with these longer heavier for cal bullets that we don’t need a partition.
The wins on this formula are not just in terminal performance but you end up with much higher bc which lets you burn lots less powder while increasing hit probability due to less recoil but also less drop and wind drift.