Interesting read, thanks!
I have to say though that it not only seems counterintuitive (the article even said it was) but also somewhat contradictory. I mean if the .223 is known to penetrate ballistic armor better than buckshot, handgun ammo and even SMG (handgun ammo from longer barrels), it does not penetrate sheetrock with as much residual energy as the former?
Gonna have to sleep on that one...
has
Opinion: Generally high velocity rifle rounds fragment so readily that over-penetration in an urban (indoor) setting is LESS dangerous than with handgun or submachinegun rounds like 9mm, 10mm, .40S&W, etc. 5.56 FMJ rounds will do more penetrating than JHP and JSP rounds but still are generally safer for interior use- insofar as bystanders are concerned.
|
So .223 does pentrate more, but it is the good kind of penetration not the bad kind?....uhhhh...okay...
Seriously guys, I KNOW I am newbie here and am not in any position to argue with the experten. My experience is all anecdotal and unscientific, but I intend to switch one of my ARs to use the 7.62X39 since I have had head to head comparisons of it versus the .223 when fired at oak trees and feral pigs, The Ruskie stuff hits a lot harder from my experience. But the .223 puts even my .357 to shame on penetrating the skull of a pig or the trunk of that tree (in a different league altogether from the 9mm). I figured it has as much to do with the point as the foot/pounds though. My handloaded .357s are 125gr at about 1,600fps, but they have large exposed lead hollow points so they just don;t drill well.