The Weatherby Mark V Accumark .340 Wby Mag Rifle is a bolt-action rifle chambered in .340 Weatherby Magnum, set up with a 26-inch barrel threaded 5/8-24 and a factory Accubrake ST muzzle brake (brand part no. MAM01N340WR8B). The Accumark pairs the Mark V action with a fluted #3 contour barrel and a hand-laid fiberglass stock, a combination Weatherby built for long-range accuracy. It holds 3+1 rounds with a 1-in-10 twist, a good fit for long-range hunting.

Key Specifications

• Chambering is .340 Weatherby Magnum, which sets the ammunition this rifle is built to shoot.
• Barrel length is 26 inches, and Weatherby lists 28 inches overall with the 2-inch brake attached.
• Magazine capacity is 3+1, the maker’s figure for this chambering.
• The rate of twist is 1-in-10 inches, matched by the maker to this cartridge.
• The rifle ships with an Accubrake ST muzzle brake, which Weatherby counts as 2 inches on top of the barrel length.
• The barrel is threaded 5/8-24 to carry the brake, per the maker’s tech specs for this chambering.
• The stock is a hand-laid, raised Monte Carlo fiberglass stock with a matte gel coat, spiderweb accents and aluminum bedding blocks.
• The barrel is a two-tone fluted design in spun stainless with Graphite Black Cerakote, and the receiver, bolt, bolt knob and safety carry Graphite Black Cerakote.
• Weight is about 8.3 pounds, per the maker’s tech specs for this chambering.
• Overall length is 48.25 inches, the figure Weatherby lists for this chambering.

Frequently Asked Questions

Does Weatherby guarantee the accuracy? Weatherby guarantees all Mark V rifles to shoot a 3-shot group of .99 inch or less at 100 yards from a cold barrel when used with Weatherby factory or premium ammunition, within two years of verified purchase date and for the original purchaser.

Does this .340 Weatherby Magnum rifle come with a muzzle brake? Yes. Weatherby fits an Accubrake ST muzzle brake to this rifle, and the barrel is threaded 5/8-24 to carry it. The 26-inch barrel measures 28 inches with the brake attached.

What capacity does the .340 Weatherby Magnum version hold? Weatherby lists the .340 Weatherby Magnum chambering at 3+1 rounds, with a 1-in-10 rate of twist.

Buy the Weatherby Mark V Accumark .340 Weatherby Magnum Rifle, 26-Inch Threaded Barrel with Muzzle Brake

The Accumark has been a long-range staple of the Mark V line, and this chambering gives magnum shooters the fluted barrel, brake and fiberglass stock in one rifle. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more bolt action rifles while you are here.