Quote:
Originally Posted by Whitwabit
Some of the ballistic test on YouTube I have seen on the Underwood ammo had massive over penetration .. it might be a good woods ammo in 9mm or larger caliber but I didn't feel I could use it safely for defensive carry use from the tests I watched !!
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Yes the ones using Underwood Extreme Penetrator do often over penetrate and those rounds are not usually recommended in 9mm and bigger calibers unless hunting. The Extreme Penetrator is perfect for the 380 acp. Use the Extreme Defender for 9mm and bigger calibers as the fluting of the bullet is designed for more tissue expansion and not as great penetration.
Again FBI 5 layer / gel ballistics is just that. Does not account for clothing + skin + fat + muscle + bone + body fluid. A skinny 95 lb threat vs a 6'6" 280 lb muscle thug vs a 500 lb thug all represent a challenge to shooter.
I shoot UW 90gr +P Extreme Penetrator in my 380 Bodyguard and their 120gr +P Extreme Defender in my 45 Shield.