 It can also shoot .454 Casull and .45 Colt, and is easily identified by its neon yellow Hogue grips.Introduced in 2005, the Ruger Alaskan is Ruger's first short-barreled, big-bore, six-shot, double-action revolver, intended for defense against large, dangerous animals.The 2.5" barrel on the Alaskan ends at the end of the frame, and the scope bases are omitted.