Of course they do. The number one thing you can do to ensure a non-dangerous game animal goes down quickly and is easy to find if it runs at all is produce a large exit wound with an expanded projectile. The way you ensure your expanded projectile exits is sectional density - really expanded sectional density, but since expansion ratios are at least close to constant the un-expanded sectional density and weight retention is a good proxy.
This is why .270 is so weak in terms of terminal performance on large game.
A bullet that doesn't exit on anything but a straight on shot is a bullet failure.
Last edited by Llama_Bob; 09/20/19.
