Grizzly Cartridge 45 (Long) Colt +P 225gr Jacketed Hollow Point Handgun Ammo - 20 Rounds - These Heavy .45 Colt +P loads are safe in all LARGE FRAME Ruger revolvers. (Including Blackhawk, Super Blackhawk, all pre-2005 Vaquero, Bisley, Redhawk). These loads are also safe in all modern Model 1892 lever actions as well as all Winchester & Marlin 1894's. These Heavy .45 Colt +P loads are NOT intended for the New Model Vaquero (small frame) For large frame revolvers NOT for small frame revolvers 225 Grain +P Load