Compatible with Smith & Wesson® K-Frame, Taurus® Mid-Frame, and Rossi® 971 revolvers, the HKS .357 Magnum Speedloader for S&W K Frame / Taurus Mid Frame / Rossi 971 is an ultrareliable 6-shooter speedloader, favored by experienced shooters across the country. The dependable twist knob eliminates cartridge jiggling for improved safety and silent deployment. Fits most medium-sized speedloader cases (not included).