How much does barrel length matter? For the .45 ACP, it turns out that there’s not much difference across barrel lengths when using loads designed for use in commonly sized handguns.
Arsenal Firearms' Double Barrel Pistol shoots two bullets at once
How Does a Short-Barrel Affect .45 ACP Ballistics?
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5 Short-Barreled Handgun Loads
5 Short-Barreled Handgun Loads
375 Raptor - Black Collar Arms
45-70 Ballistics Chart & Other Information
Short-Barrel Performance — The .45 ACP and Barrel Length - The Shooter's Log
How long does an 45acp rifle need to be to keep it quiet when fired? - Quora
Real 1911 Muzzle Velocity Changes With Barrel Length
Short Barrel' ammo
45 ACP