With one slight twist, the US made HKS Speed Loader instantly leads all cartridges into nearly any revolver. Strong metal points hold cartridges securely in the loader until you release them into the revolver with a turn of the speed loader knob. Fits- S&W 36, 37, 38, 40, 42, 49, 60, 337, 340, 360, 637, 638, 640, 642, 649, J-Frame; Charter Arms 85, 605, 651, 851; Taurus 85, 605, 650, 651, 850, 851; Rossi 68, 88, 351, 352; Ruger SP101.