The Weatherby Alpine MDT Carbon .300 Wby Mag rifle (brand part no. 3WAMC300WR6B) is a bolt-action hunting rifle chambered in .300 Weatherby Magnum, built on Weatherby’s Model 307 action. It has a 24-inch barrel with a 1:10 twist, and the barrel is threaded 5/8-24 and fitted with the Accubrake DST muzzle brake. The barrel is a lightweight BSF carbon fiber design, and the rifle sits in MDT’s HNT26 chassis with an adjustable cheekpiece, adjustable length of pull and a foldable buttstock. Weatherby builds the Model 307 in Sheridan, Wyoming, and guarantees sub-MOA accuracy, a 3-shot group of .99 inch or less at 100 yards, with Weatherby factory or premium ammunition.

Key Specifications

• The chambering is .300 Weatherby Magnum, set for this exact Weatherby configuration.
• The barrel measures 24 inches ahead of the 2-inch muzzle brake, a length that sets how the rifle carries and handles.
• Weatherby lists the magazine capacity as 3+1, counting one in the chamber, which sets how many shots you have before reloading.
• The rate of twist is 1:10 inches, the rifling pitch Weatherby chose for this chambering.
• The barrel is threaded 5/8-24, the pitch to match before choosing a different muzzle device.
• The Accubrake DST is a side-ported, directional, self-timing muzzle brake, and a timing nut lets you time it without a gunsmith.
• The rifle has a two-position safety, a simple on and off design that is quick to operate.
• The TriggerTech Field trigger is externally adjustable down to 2.5 pounds, with a zero-creep break and short over-travel.
• The MDT HNT26 chassis weighs 26 ounces and combines a magnesium alloy stock with carbon fiber parts, plus an integral ARCA rail for tripod attachment.
• Weatherby lists the weight at 6.7 pounds, which affects how the rifle carries on a long day.

Frequently Asked Questions

How many rounds does the .300 Wby Mag Alpine MDT Carbon hold? Weatherby lists the capacity for this chambering as 3+1, which is 3 in the magazine plus one in the chamber.

Does this rifle come with a muzzle brake? Yes. The Accubrake DST is installed, and the barrel is threaded 5/8-24.

Is the trigger adjustable? Yes. The TriggerTech Field trigger is externally adjustable down to 2.5 pounds, and the rifle has a two-position safety.

Buy the Weatherby Alpine MDT Carbon .300 Wby Mag Rifle

A .300 Wby Mag rifle with a brake and threaded barrel suits hunters who want recoil control and a lightweight build. 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.