The Weatherby 307 Alpine MDT .338 Wby RPM rifle is a chassis-based hunting rifle on the tool-less-takedown Model 307 action (brand part no. 3WAMH338WR6B). It sits in MDT’s 26-ounce HNT26 chassis with v-block bedding, an adjustable cheekpiece, adjustable length of pull and a foldable buttstock. It is chambered in .338 Weatherby RPM with a 24-inch barrel, a 3+1 magazine capacity and a 1:10 twist, and the barrel is threaded 5/8-24 and fitted with the Accubrake muzzle brake. The spiral-fluted barrel sheds weight, adds rigidity and helps the barrel cool. Weatherby builds it at its Sheridan, Wyoming headquarters, and Weatherby backs every Model 307 with a sub-MOA accuracy guarantee when it is fed Weatherby factory or premium ammunition.

Key Specifications

• The chambering is .338 Weatherby RPM, matched to the action and magazine of this specific Weatherby SKU.
• The barrel is 24 inches, or 26 inches with the 2-inch muzzle brake installed, a length chosen for a balance of velocity and handling.
• Magazine capacity is 3+1, counting one in the chamber, which sets how many shots you have before reloading.
• A universal Accubrake muzzle brake with suppressor ready threads is fitted, and Weatherby rates this radial design to reduce felt recoil by up to 53%.
• The barrel is threaded 5/8-24, the pitch to check before choosing a muzzle device or suppressor mount.
• The chassis is AICS magazine compatible and the forend has an integral ARCA rail for tripod attachment.
• Rate of twist is 1:10 inches, the rifling pitch matched to the bullet weights this chambering is built to shoot.

Frequently Asked Questions

How many rounds does it hold? Weatherby lists the magazine capacity for this chambering as 3+1, which means 3 rounds in the magazine plus one in the chamber.

Can the stock be adjusted? Yes. The stock has an adjustable cheekpiece and adjustable length of pull, and the length of pull runs 12.5 to 13.5 inches.

Does this rifle come with a muzzle brake? Yes. It comes with the Accubrake installed, and the 24-inch barrel is threaded 5/8-24 with suppressor ready threads, according to Weatherby.

Buy the Weatherby Model 307 Alpine MDT .338 Weatherby RPM Rifle, 24-Inch Threaded Barrel with Muzzle Brake

Chassis control and a folding buttstock suit both the range and the pack. 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.