I’m a moron when it comes to ballistics so can someone explain (without big words - I’m a dumb dumb) how the Glock wielding dude nearly had his arm taken off by what I presume was a 5.56 AR-15 while the guy that got shot in the head had a small entry wound?
Did the guy who got shot in the head get grazed? Also my stupid understanding of 5.55 was that since it is so high velocity it usually gots straight through and doesn’t tumble like 7.62x39
Near as I can tell you lose intermediate barrier penetration vs a huge temporary wound channel and increased energy transfer. I don't mind as I don't want to shoot through cover with my "fuck you and everyone with you" rifle.