Fits:

• Knight Muzzleloaders: LK-93, Wolverine, Legend, Disc, American, and Revolution
• Browning: Bolt Action BBR, Hi-Power, and other older caliber models
• Weatherby: FN Mauser style actions
• Marlin: 455
• Colt: 57
• H&R (Harrington & Richardson): 300, 301, 330, and 370 (all pre-1973 models)
• Sears: 50 & 52