Comment on Firearm Advice
sad_detective_man@sopuli.xyz 7 hours agoOh, good to know. But how do you assess value? I know we like hp for transferring force but my personal attraction to these was exit wounds.
Also according to a article I linked later, they break bones?
ProdigalFrog@slrpnk.net 6 hours ago
When it comes to pistol calibers, raw kinetic energy isn’t really a factor, they’re just too weak to actually induce any sort of hydro-static shock that could cause a permanent rupturing of nearby tissues, you need much higher velocities or energy to do that that, which only rifle rounds or shotgun slugs can reliably induce.
For pistols, the only mechanism of action they can rely on is the mechanical size of the bullet itself, as the bigger the bullet, the larger the hole, and thus the faster the blood loss. Hollow points are the best method to cause bigger holes.
Ballistic gel is a somewhat deceptive testing media, as it can show a big permanent wound cavity beyond the size of the bullet itself, which isn’t actually how it would perform real tissue, which is able to stretch much more than ballistic gel. What really matters for pistol rounds are being able to expand as much as possible while also maintaining adequate penetration (12" in gel), so that you can reliably penetrate bone and muscle to reach critical organs from any angle. You also want to ensure that the specific hollow point chosen isn’t prone to being plugged by heavy clothing if you live in colder environments.
LuckyGunner provides the best comparison of bullets that I’ve personally seen for every pistol caliber, allowing you to avoid bullets that don’t adequately penetrate, expand, or over-penetrate.
All pistol defensive pistol calibers break bone when struck, the xtreme penetrators will simply penetrate further and through more bone than a hollow point. This makes it act similarly to a hardcast (ultra hard lead that doesn’t deform) flatnose bullet, which are also usually only recommended for bear protection.
Over-penetration is an extremely negative trait in personal defense against humans, as it means that the bullet will pass through the target into anything behind them, including innocent who you do not intent to hurt. In self defense rounds you want the bullet to stop inside the first target to avoid endangering anything behind them.
Xtreme Defenders are a good value for bear protection, but are extremely poor value for self-defense, as they are more expensive than a good hollow point while providing less effective wounding characteristics and increased danger to bystanders.
sad_detective_man@sopuli.xyz 6 hours ago
Wow that is really disappointing. Is that why that Paul Harrel guy was using food items? And is 357 too slow to cause tearing like that then? Hydrostatic. I was lead to believe this would work like that because of the speed of that round.
I’ll look up lucky gunner, too. Thanks for breaking all this down for me. It’s looking like bullets have gotten a lot cheaper recently so I might as well get some hp.
ProdigalFrog@slrpnk.net 3 hours ago
Yes, the meat analog he uses, though not perfect, is the closest to a real-world test I’ve found that a regular person could reasonably perform themselves.
357 out of a revolver is indeed still too slow, even with lighter bullets. Only in a lever action carbine does 357 start to reach the required power to perform some hydrostatic tearing, since 357 is really able to take advantage of that extra barrel length to increase velocity fairly dramatically.
There was an extremely comprehensive video done on real-world wound ballistics that I was struggling to find for my last comment, but I found it just now, once again thanks to Luckygunner.
He gives a summary of it here, and also made this video as a supplement, but if you’d like to see the absolute last word on firearm wound ballistics, I’d suggest this full documentary featuring Dr. Martin Fackler (but be warned, this has NSFW gory images as examples).
sad_detective_man@sopuli.xyz 2 hours ago
Oh hell yeah. Thank you so much!