Just because a style/type of bullet works in one cal/weight, it doesn't mean it will work in all the others. SO, if Cor-loks work in a 30-06 for example, that doesn't mean they will work in a 7 mag..

Biggest problem i see a lot, is guys are useing too big of a gun for the game they are hunting!!! My nephue uses a 338 mag for whitetails!! Those big game bullets just weren't designed to work well in smaller animials.

I've shot a lot of big game animials, and the bullet that has been the best for me in all the cal's i've used, is the Nosler partitions. The nose is soft and expands well, then the partition stops the expasion, allowing the rest of the bullet to drive on through.

I haven't recovered many N. partition bullets over the years and that's fine with me, as i like to see an exit wound on anything i shoot.

BTW, in my 7mm, i use 140 grain bullets for deer, and that seems to be the right weight for deer sized game, especially with a broad side lung shot. The problem with the 7 mag is, if the deer is too close most lighter bullets over expand, and heavier bullets don't expand enough. (on light game like a deer)

This is all the more reason to use a bullet that has a soft nose, and rear protion that will drive on through!!