Originally Posted by Ranger-6
In my line of business I might need the horsepower that will go through a vehicle door, or wall, or some other type of reinforced cover. The .45 +P+ FMJ is the choice of round coming down range. Hello!!!
45+P+ in an FMJ platform? Hmmm...that must be some super-secret gee-whizz stuff there. After 23 years as a police officer, academy firearms trainer, and SWAT member before the knees and hip went...I never had that come across the wire for evaluation. The +P+ round in military usage IF
such an animal exists...would be no-se-bueno from a legal standpoint via Hague Convention rules.
Unless you're part of some super-secret higher than high speed lower than low drag operations team that operates with no oversight, and with presidential pardons in your pocket...then I am frightfully uneducated about the need or even usefullness of such an animal as a +P+ BALL
round. It would't be practical from a self defense point of view, and if penetration through cover was a key consideration...well...one would think super troopers would have a rifle or a carbine.Penetration?
A 9mm in standard pressure in an FMJ will penetrate MORE than a 45 ACP even at +P velocities. Even though the round is half the weight, it has longer relative sectional density, and is more efficient (aerodynamically), and pushed to much higher velocities. Physics is a bitch. That is not to say that 9mm ball is particularly effective at being anything more than a remote controlled drill bit...then again, non-expanding ammo in just about any caliber is about as useless as hen**** on a pump handle in self defense applications, unless you're talking about 44Spl, 45 Colt, or even 45ACP in MODERATE velocity loadings to DECREASE over penetration and INCREASE the amout of trauma delivered INTO the target.
The standard 230 FMJ round is chugging along at right aroung 850. In +P a 230 round in JHP will only be slightly faster at 950. The fastest 45ACP I have ever used/evaluated is the Cor Bon 165 +P JHP with scoots just under 1150 over a chrony. However...this round is the recoil equivalent of a 41 Magnum, and beats up the gun AND the shooter. Pretty good carbine round...but MEH as an actual carry round.
So...pushing a round that is 65 grains HEAVIER
to +P+ velocities? Well...that's gonna be a gun breaker, create ridiculous muzzle blast, and a lack of control. It just doesn't make sense.