The Magnum Research BFR (Big Frame Revolver) in .454 Casull is a single-action revolver with a 7.5-inch barrel, 5-round capacity, and stainless steel frame. It weighs 3.8 lbs (60.8 oz). The rate of twist is 1:16 RH. Sights are fixed front and adjustable rear. The grip is synthetic A2 pistol grip style. 
 

Key Specifications 

• Manufacturer: Magnum Research 
• Model: BFR 
• Series: Short Cylinder SS 
• Caliber: .454 Casull 
• Barrel Length: 7.5 inches 
• Capacity: 5 rounds 
• Weight: 3.8 lbs (60.8 oz) 
• Frame Finish: Stainless Steel 
• Grip Material: Synthetic with A2 Pistol Grip style 
• Action Type: Single Action 
• Sights Type: Fixed Front, Adjustable Rear 
• Rate of Twist: 1:16 RH 
   

Detailed Features 

The 7.5-inch barrel provides more velocity from the .454 Casull cartridge than shorter alternatives, and the 1:16 RH twist stabilizes the wide range of bullets this cartridge can use. The adjustable rear sight allows zeroing for specific loads. The stainless steel frame handles corrosion well in field conditions. The synthetic A2-style grip gives positive control during the significant recoil of .454 Casull loads. Single-action operation requires cocking before each shot, which is standard for this type of revolver. 
 

Usage 

At 60.8 oz this is a hunting sidearm and range gun, not a carry piece. The .454 Casull chambering is suited for large game and protection against dangerous animals in the field. The 7.5-inch barrel is the longer configuration and delivers better ballistic performance than the shorter BFR variants, at the cost of added bulk.

The Magnum Research BFR in .454 Casull draws a consistent pattern of feedback across owners.

The stopping power of the .454 Casull cartridge is the primary draw and gets consistent praise from hunters and outdoor shooters who need serious field capability. The stainless steel build quality is well-regarded for durability and weather resistance. The heft of 60.8 oz is seen as a feature rather than a drawback by most buyers in this category — it helps manage .454 Casull recoil, which would be punishing in a lighter gun.

The main caveats are the size and weight for anything beyond field carry, and the intensity of recoil even with the weight working in your favor. New shooters to the .454 Casull cartridge are frequently advised to start with lighter loads before moving to full-power ammunition. Customization discussions are common — grips and sights are the most popular aftermarket modifications. Price is considered high by some, though the build quality generally justifies it within this caliber class.