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Old December 8, 2012, 03:38 PM   #1
Senior Member
Join Date: February 16, 2012
Posts: 306
A shorter barrel....most efficient defense rounds

I have a G23 and a G27. Both are stock .40sw caliber, but I also have 9mm conversion barrels for them.

I know that the longer barrel of the G23 will push the bullet faster from the muzzle than the G27. I've seen this on Youtube with folks shooting through chronographs. A tad longer barrel will give more FPS because the expanding gases have more distance to work on speeding the bullet.

What I'd like to know is if ammo can be custom taylored to be used more efficently in guns with compact barrels?

I also wonder if different wieght bullets are better suited for short barrel pistols. Like maybe a 124gr 9mm would be more efficient in a in a G26 or a 147 gr would work better in a G19, or vice versa.
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