Originally Posted by
megasupermagnum
I'm seeing anywhere from 25" to 30" of penetration in ballistics gel for the 45 acp ball load. I do like bullets to pass through. If I were shooting something really skimpy like 22 lr, 25 acp, 32 acp, maybe even 38 acp, there is a strong argument for the solid lead bullets. In 9mm and stronger, not as much.
Worst case scenario for a hollow point bullet is FMJ performance. Unless you are hunting big game, there are no drawbacks to expanding bullets if your semi-auto will feed them.