A lot depends on impact velocity.
A lot depends on sectional density. If you have a high sectional density bullet then even though the front gets destroyed upon impact there is still plenty of bullet left to penetrate.
A lot depends upon what the bullet strikes going in. There are big deer and small deer.
A lot depends on what you ask the bullet to do, such as trying to go the long way to get to the chest cavity.
For eastern whitetail deer which are small, you should be fine with 175's in the 308, and perhaps a little more wieght in the 300WM. For the 7mmRM, the 168s will be enough. If you take a bad angled shot within 50 yards you may be sorry because of all the damage that occurs.
For the 7mmRM, I would prefer the 160 Accubond as being a docile bullet at close range. It will expand a moderate amount without really destroying the deer. At 500 yards the accuracy is easily good enough.
The Smokin Fur Rifle Club
Last edited by Buffalobob; 01-16-2008 at 07:13 AM.
Reason: Add a few more thoughts