Originally Posted By: hatt
Originally Posted By: Cujet
I'm not at all convinced it matters, or that "high expansion" "high power" ammo will be in any way better. I use ball ammo in everything. I'd rather have reliable, consistent, understandable performance.
It worked exceptionally well in WWII and it will work well now.
What's not understandable about modern HP performance? Sure there's a chance a quality modern bullet won't expand properly but that better than guaranteeing the bullet won't expand.
Please understand, I'm not saying that +P JHP ammo is not more powerful, or that it's not more effective in some situations. I'm saying that FMJ ammo will do the job very reliably. The job is to stop an attacker, and a bad guy, getting shot with a 45ACP FMJ is very likely to stop. And, my gun is very likely to continue performing well, round after round, with FMJ.
I train with FMJ, use FMJ and understand the performance of FMJ. It really is hard to beat the reliability, repeatability and accuracy and the price of quality FMJ ammo. And, my testing shows that FMJ is somewhat more likely to make it through walls, studs, wood, doors and car windows and so on. I can't imagine a situation where I may need to shoot through something, can you? Oh, wait, yes I can. Bad guys hide behind stuff when getting shot at.
From wiki "Even in its non-expanding full metal jacket (FMJ) version, the .45 ACP cartridge has a reputation for effectiveness against human targets because its large diameter creates a deep and substantial permanent wound channel which lowers blood pressure more rapidly.[9] The wounding potential of bullets is often characterized in terms of a bullet's expanded diameter, penetration depth, and energy. Bullet energy for .45 ACP loads varies from roughly 350 to 500 ft·lbf (470 to 680 J)."
Just another note: Standard 45ACP FMJ has 27 inches penetration in ballistic gelatin, +P 45ACP HP has 11-12 inches penetration. Over penetration is not on my list of concerns. Stopping a bad guy is. Put another way, you want fast, accurate hits, what you hit them with is a secondary concern. I'm sorry but FMJ is more accurate.