The Weatherby 307 Alpine MDT Carbon is a bolt-action rifle in .300 Win Mag built around a carbon fiber stock. At 6.6 lbs it is genuinely light for the caliber, making it practical to carry over rough terrain on multi-day hunts. The 22-inch barrel has a 1-in-10" twist and is threaded 5/8x24 for suppressors or muzzle brakes. Capacity is 3+1 rounds and the action is drilled and tapped for optics. 
 

Key Specifications 

• Manufacturer: Weatherby 
• Family: 307 Series 
• Model: 307 Alpine MDT Carbon 
• Type: Rifle 
• Action: Bolt Action 
• Caliber/Gauge: 300 Win Mag 
• Barrel Length: 22" 
• Rate-of-Twist: 1-in-10" 
• Capacity: 3 + 1 rounds 
• Weight: 6.6 lbs. 
• Shipping Weight: 10.05 lbs. 
• Thread Pattern: 5/8x24 
• Special Feature: Threaded Barrel 
   

Detailed Features 

• Carbon fiber stock reduces weight without sacrificing rigidity 
• 22-inch barrel with 1-in-10" twist stabilizes heavy .300 Win Mag projectiles well 
• Threaded barrel (5/8x24) accepts suppressors and muzzle brakes 
• Drilled and tapped action for scope mounting 
• 3+1 capacity 
   
  The MDT chassis design gives the rifle a more modern, adjustable ergonomic profile compared to a traditional walnut stock. At .300 Win Mag pressures, recoil is noticeable; a muzzle brake or suppressor via the threaded barrel makes a real difference for extended range sessions.

Owners of the 307 Alpine MDT Carbon in .300 Win Mag point to the weight as the headline feature. 6.6 lbs for a magnum rifle is genuinely useful in the mountains, and the carbon fiber stock holds up to hard use. Accuracy reports are consistently positive at longer ranges, and the bolt runs smoothly.

Price is the most common complaint. The rifle sits at the upper end of the hunting bolt-gun market, and some buyers find it hard to justify versus heavier but cheaper alternatives. Recoil management comes up fairly often too. Most owners find it acceptable, but a number of them recommend running a muzzle brake on the threaded barrel for extended range sessions.

Overall, those who buy it for serious backcountry hunting tend to be satisfied with the trade-offs.