Rossi RP63, Double Action/Single Action, Steel Framed Revolver, 357 Magnum, 3 Barrel, Stainless Steel, Silver, Rubber Grips, Fixed Sights, 6 Rounds 2-RP639 The Rossi RP63 is a reliable 6-shot, 357 Magnum revolver that features soft rubber grips-making it comfortable to shoot at the range while the double/single action increases speed and accuracy for follow-up shots.