Buffalo Bore Ammunition Buffalo-Barnes Lead-Free 45 Colt LC +P 225 Gr Ba. Barnes placed the crimp groove in a location that affords a short cartridge OAL; therefore the loaded cartridge will fit into the short cylinder of the FA mod. 97. The OAL for this cartridge is 1.572" which means you can chamber it in revolvers that are too weak to fire +P loads. Use this ammo ONLY in ALL LARGE FRAME RUGERS (i.e. Black Hawks all Red Hawk iterations chambered in 454 Casull and 45 Colt and pre 2006 Vaqueros) Colt Anaconda all FA revolvers chambered in 454 Casull and 45 Colt and Dan Wesson revolvers Winchester and Marlin mod. 1894 all falling block actions made of modern steel TC Encore and the Handi Rifle. Specifications for Buffalo Bore Ammunition 3G/20 Buffalo-Barnes Lead-Free 45 Colt (LC) +P 225 Gr Ba: Manufacturer: Buffalo Bore Ammunition Caliber: .45 Colt Number of Rounds: 20 Bullet Type: Jacketed Hollow Point (JHP) Bullet Weight: 225 grain Cartridge Case Material: Brass Muzzle Velocity: 1500 ft/s Application: Protection Primer Style: Centerfire