The Weatherby 307 Alpine MDT Carbon is a bolt-action rifle chambered in .300 WBY Mag, built around a carbon fiber chassis for hunters who want to cut pack weight without losing structural rigidity. It comes in at 6.7 lbs. with a 24-inch threaded barrel (5/8x24), a 1-in-10" twist rate, and a 3+1 capacity. 
 

Key Specifications 

• Manufacturer: Weatherby 
• Family: 307 Series 
• Model: 307 Alpine MDT Carbon 
• Type: Rifle 
• Action: Bolt Action 
• Caliber/Gauge: 300 WBY Mag 
• Barrel Length: 24" 
• Rate of Twist: 1-in-10" 
• Capacity: 3 + 1 rounds 
• Thread Pattern: 5/8x24 
• Weight: 6.7 lbs. 
• Shipping Weight: 11.45 lbs. 
• Special Feature: Threaded Barrel (ideal for suppressors) 
   

Detailed Features 

The carbon fiber construction keeps weight down to 6.7 lbs. while maintaining the stiffness needed for consistent barrel harmonics. The 1-in-10" twist stabilizes heavier .300 WBY Mag projectiles well at longer distances. The threaded barrel (5/8x24) accepts suppressors or muzzle brakes, which is useful given the .300 WBY Mag's substantial muzzle blast. The MDT chassis integrates with a wider accessory ecosystem than a traditional stock would allow.

Owners of the 307 Alpine Carbon in .300 WBY Mag generally focus on two things: the weight and the accuracy. The carbon fiber build at 6.7 lbs. gets consistent praise from hunters who carry rifles for long stretches, and most users are satisfied with the precision at extended ranges. Weatherby's reputation in this area holds up in field reports.

Recoil is the most common concern. The .300 WBY Mag is a hard-hitting cartridge, and the lightweight build doesn't dampen it much. Experienced shooters manage it without issue, but it can be rough for those newer to magnum calibers. Cost also comes up. The rifle sits at the higher end of the bolt-action price range, so buyers are generally comparing it against other dedicated long-range hunting platforms before committing.