The Browning BAR Mark III is a gas-operated semi-automatic rifle chambered in .300 Winchester Magnum with a 24-inch barrel, polished blue finish, and a Turkish walnut stock with satin oil finish. The receiver is aluminum alloy with a matte nickel finish. At 7.7 lbs it handles the .300 Win Mag recoil reasonably for a semi-automatic. The gas operation absorbs a meaningful portion of the felt impulse compared to a bolt gun. Capacity is 3 rounds from a hinged floorplate detachable box. 
 

Key Specifications 

• Caliber: .300 Win Mag 
• Capacity: 3 rounds (hinged floorplate, detachable box) 
• Barrel Length: 24 inches 
• Weight: 7.7 lbs 
• Finish: Polished Blue Barrel / Matte Nickel Receiver 
• Stock: Turkish Walnut, satin oil finish 
• Action Type: Semi-Automatic 
   

Features 

The gas-operated action is the BAR's defining characteristic. It provides faster follow-up shots than a bolt action in the same caliber, which has practical utility on large game where a second shot at a running animal is sometimes needed. The crossbolt safety is straightforward. The 24-inch barrel gives the .300 Win Mag full velocity for the cartridge's long-range performance. The polished blue and walnut combination is traditional in appearance, differentiating it from tactical-style alternatives.

The BAR Mark III in .300 Win Mag gets consistent praise for its semi-automatic action in a hunting caliber. The reduced felt recoil compared to a bolt gun in the same chambering is the feature most owners highlight, along with the faster follow-up shot capability. At a longer shot distance on elk or similar game, those two factors are worth real consideration.

Accuracy feedback is positive. Users report solid precision at hunting distances, and the gas operation doesn't appear to compromise this. Build quality is generally rated highly. The polished blue and walnut combination is considered attractive and well-executed for a production rifle.

Weight at 7.7 lbs draws divided opinions. For a rifle that absorbs .300 Win Mag recoil through gas operation, it's not excessive. Hunters who cover a lot of ground find it noticeable by the end of a long day.

Price is a consistent discussion point. The BAR Mark III costs more than bolt-action alternatives in .300 Win Mag, and buyers acknowledge the semi-auto action is what they're paying for. Most owners who specifically wanted a semi-auto hunting rifle in this caliber find the premium justified. Those on a tighter budget lean toward bolt actions.