The Weatherby Mark V Accumark Gen 3 is a bolt-action rifle chambered in .300 Win Mag with a 26-inch fluted barrel, 3+1 capacity, and a 1:10" twist rate. It weighs 8.30 lbs at 48.25 inches overall. The stock is a fixed Monte Carlo fiberglass design with gray webbing; the barrel and action wear a Graphite Black Cerakote finish. 
 

Key Specifications 

• Model: Mark V Accumark 
• Caliber: .300 Win Mag 
• Barrel Length: 26 inches 
• Capacity: 3+1 rounds 
• Weight: 8.30 lbs 
• Overall Length (OAL): 48.25 inches 
• Action Type: Bolt Action 
• Finish: Graphite Black Cerakote with Fluted Barrel 
• Stock Material: Fiberglass, Fixed Monte Carlo design 
• Twist Rate: 1:10" 
• Trigger Type: Trigger Tech Field 
   

Features 

The Trigger Tech Field trigger is adjustable and has a clean break. It's a notable upgrade over the factory triggers found on most hunting rifles at this price. The Accubrake ST muzzle brake takes a meaningful amount of edge off the .300 Win Mag impulse, which matters when you're running a follow-up shot on large game. The fluted barrel reduces weight compared to a straight profile and dissipates heat faster during extended shooting. The fiberglass stock is rigid and dimensionally stable across temperature and humidity changes, which keeps the barrel free-floated consistently. Cerakote handles weather exposure without the maintenance demands of blued steel.

Owners of the Weatherby Mark V Accumark Gen 3 in .300 Win Mag consistently cite accuracy as the standout characteristic. Tight groups at distance are the norm, and the Mark V action's reputation for precision holds up in practice. The Trigger Tech trigger gets specific credit; shooters who've used other hunting rifles describe it as a clear step above typical factory triggers.

The Accubrake ST muzzle brake generates two kinds of feedback: hunters who shoot from a bench or in open country appreciate the recoil reduction on .300 Win Mag; hunting partners standing nearby are less enthusiastic about the concussion. It's a real trade-off worth knowing about before you buy.

Build quality and the Cerakote finish get consistent praise for durability. The fiberglass stock is practical rather than flashy, which suits most working-rifle buyers fine, though a handful would prefer more color options. The price sits in premium territory, and most owners who address value conclude it's justified. This isn't a rifle where buyers commonly express regret about the spend.

Weatherby's customer service gets positive marks from most who've needed it.