Description
The Weatherby 307 Alpine MDT Carbon 300 Win is the folding chassis rifle chambered for the most widely available 30 caliber magnum in North America. A 22 inch BSF carbon wrapped barrel wears an Accubrake DST, the Model 307 action sits in an MDT HNT26 carbon fiber and magnesium chassis, and the rifle weighs 6.6 pounds bare. It folds to 32.25 inches and extends to 44.25 inches. The UPC is 747115456710. MAG5 Firearms lists it for elk and open country hunters who want magnum reach in a pack friendly rifle.
Magnum Performance, Common Ammunition
The argument for 300 Winchester Magnum over a proprietary Weatherby round is simple and practical: you can buy it almost anywhere, in every bullet weight, from every major loader, and usually at a lower price. As a 300 win mag hunting rifle this gives elk and moose capable energy past 400 yards without the logistics problem that comes with a cartridge only one company loads. That matters a great deal on a hunt far from home, and it is the strongest argument for a Weatherby 307 Alpine MDT Carbon 300 Win.
The mdt hnt26 chassis is carbon fiber and magnesium rather than aluminum billet, which is the reason a folding chassis rifle lands at six and a half pounds instead of ten. Comb height adjusts, length of pull runs 12.5 to 13.5 inches with the same adjustment, and the forend carries an integrated ARCA rail so a tripod clamp or ARCA bipod mounts without an adaptor. The hinge on a Weatherby 307 Alpine MDT Carbon 300 Win locks tightly enough that folding does not disturb zero.
The action is the Weatherby Model 307: two lugs, an M16 style extractor, tool-less bolt disassembly for field cleaning and a Remington 700 footprint so aftermarket bases and triggers fit. The trigger is an externally adjustable TriggerTech field unit. The bsf carbon barrel is a steel liner in a carbon shell with a 1 in 10 twist and a 5 8 by 24 threaded muzzle.
Recoil, Barrel and Honest Limits
A 300 Winchester Magnum in a 6.6 pound rifle kicks hard, and no marketing changes that. The Accubrake DST does a great deal of work and makes the rifle genuinely shootable, but it is loud in a way that surprises people at a covered range. Anyone buying a Weatherby 307 Alpine MDT Carbon 300 Win should plan on hearing protection every time, shorter range sessions than with a mild cartridge, and honest practice from field positions rather than only from a bench.
Barrel life is finite on any hard driven magnum. Throat erosion on a Weatherby 307 Alpine MDT Carbon 300 Win arrives sooner than it does on a 308 or a 30-06, and a carbon wrapped barrel saves weight without changing that at all. Confirm zero in two or three round groups with real cooling time between them, build a drop chart the same way, and treat a rebarrel as normal long term maintenance if you shoot the rifle a great deal.
A chassis is colder and harder in the hand than a composite stock, and the vertical grip takes adjustment on a Weatherby 307 Alpine MDT Carbon 300 Win for anyone who has only shot sporter stocks. The other practical point is that a light magnum punishes a sloppy shooting position far more than a heavy one does, so a bipod, a pack or a tripod is part of the system rather than an accessory.
Specifications
- UPC: 747115456710
- Caliber: 300 Winchester Magnum
- Barrel length: 22 in, 24 in overall with brake
- Twist rate: 1 in 10
- Barrel contour: Number 4 carbon, BSF carbon wrapped
- Muzzle thread: 5/8-24 with Accubrake DST fitted
- Capacity: 3 rounds plus one chambered, AICS pattern
- Overall length: 32.25 in folded to 44.25 in extended
- Length of pull: 12.5 to 13.5 in, adjustable
- Comb height: Adjustable
- Weight: 6.6 lb
- Action: Model 307 bolt, Remington 700 footprint, M16 style extractor
- Trigger: TriggerTech field, externally adjustable
- Chassis: MDT HNT26, carbon fiber and magnesium, folding, integrated ARCA rail
- Finish: Carbon Grey Cerakote receiver and brake, Graphite Black bolt
Who Should Buy It
A Weatherby 307 Alpine MDT Carbon 300 Win is the sensible magnum in this family. You get elk and moose capability, a rifle that folds into a pack, chassis adjustability, and ammunition you can replace at a gas station in Montana if your bag goes missing. For a serious western hunt, that last point is worth more than a hundred feet per second. Full factory specifications are published by Weatherby.
If you want the same rifle with less recoil and a flatter trajectory for deer sized game, the 257 Weatherby Magnum version is the better fit. If you want the cheapest practice and the mildest recoil, the 308 Winchester version uses the same chassis and barrel. Browse the rest of our rifles to compare.
Practical notes. Choose a bonded or monolithic bullet, because impact velocities at close range will destroy a thin jacketed bullet. Fit a light scope with honest elevation travel and rings matched to the rail, and pick up spare AICS pattern magazines. Finally, shoot a Weatherby 307 Alpine MDT Carbon 300 Win from a bipod or tripod during practice, because that is how it will be used in the field.
MAG5 Firearms is a family owned FFL dealer in Collegeville, Pennsylvania. This Weatherby 307 Alpine MDT Carbon 300 Win ships to the licensed dealer of your choice, and local buyers can complete the transfer with us in person. Call 610-943-0010 with any questions about optics, magazines or ammunition.








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