BFR in 454 Casull with 5.5-inch barrel. One of the most powerful production revolvers available; the 454 Casull pushes 300-grain bullets to 1,650 fps in this platform, adequate for any North American big game. Type: Revolver Action: Single-Action Caliber: 454 Casull Capacity: 5 Year introduced: 1999, USA Weight: 56 oz Overall length: 11.5" Status: Active Intended use: Hunting