Sierra's #8835 185gr JHP Sports Master is a redesign of their original #8800. It has a smooth transition from the bearing surface to the ogive and a rounder ogive profile as well as a new hollow cavity in the nose. These updated features have created a bullet that has given you a very good expansion quality and reliability from velocities associated with the 45ACP cartridge. It was originally designed for use from the 45ACP but can be used in others like the 45 Auto Rim and even the 45 Colt when certain conditions are met.