The Weatherby 307 Alpine MDT is a bolt-action rifle chambered in 6.5 WBY RPM with a 24-inch fluted barrel, TriggerTech trigger, MDT HNT26 chassis system in magnesium and carbon fiber, Black Cerakote finish, and an included muzzle brake. Overall length adjusts from 34.25" to 46.25" via the chassis. 
 

Key Specifications 

• Model: Weatherby 307 Alpine MDT 
• Caliber: 6.5 WBY RPM 
• Action Type: Bolt Action 
• Barrel Length: 24 inches 
• Capacity: 3 rounds 
• Weight: 6.9 lbs. 
• Finish: Black Cerakote 
• Muzzle Device: Muzzle Brake 
• Overall Length: Adjustable from 34.25" to 46.25" 
• Stock Type: MDT HNT26 Chassis System 
• Trigger Type: TriggerTech Trigger 
   

Detailed Features 

The fluted barrel trims weight and increases surface area for heat dissipation during rapid-fire strings. The 1:8" twist rate handles the heavy-for-caliber 6.5mm bullets that get the most from the WBY RPM's velocity advantage. TriggerTech's frictionless release mechanism provides a consistent break and positive reset. 
 
The MDT HNT26 chassis uses magnesium and carbon fiber to keep weight at 6.9 lbs despite the full-featured adjustable stock system. Length of pull adjusts from 12.5" to 13.5", and comb height is adjustable, so the fit can be dialed in for different optic heights and shooter dimensions. The muzzle brake reduces recoil impulse, which matters for a 24-inch barrel in a lightweight chassis.

The 307 Alpine MDT in 6.5 WBY RPM is discussed primarily in mountain hunting and long-range shooting circles. The lightweight chassis at 6.9 lbs is the lead selling point -- for hunters covering serious vertical, every pound removed from the pack matters, and the HNT26 chassis achieves it without sacrificing adjustability or rigidity. Accuracy reports are consistently positive; owners credit the TriggerTech trigger and free-floated barrel for repeatable groups.

The 6.5 WBY RPM cartridge's ballistics -- flat trajectory, manageable recoil, effective at distance on larger game -- are appreciated by users who have shot the caliber. Ammunition availability and cost are genuine considerations; it is not a shelf staple at most sporting goods stores, and reloading becomes part of the ownership economics for high-volume shooters.

Recoil with the muzzle brake is considered manageable by most owners, though those particularly sensitive to muzzle blast note the brake's concussive effect in enclosed spaces or when shooting from a blind. Overall satisfaction leans strongly positive, with the main discussion threads centering on optics selection and ammunition sourcing rather than platform complaints.