Description
Weatherby went a different direction with the Model 307, and the Alpine MDT is where that decision really pays off. Instead of a proprietary action, the 307 is a two-lug, fully cylindrical design built on the 700 footprint, which means it plays nice with the massive world of aftermarket triggers, stocks, mounts, and magazines. This version drops that action into MDT's HNT26 chassis, a 26-ounce piece built from magnesium alloy and carbon fiber that was designed from the ground up as a hunting chassis, not a range-day boat anchor. Every one of these rifles is machined and assembled in Sheridan, Wyoming, and backed by Weatherby's sub-MOA guarantee.
A Folding Chassis That Earns Its Spot in Your Pack
The HNT26 gives you the adjustability of a full precision chassis, with an adjustable cheekpiece, adjustable length of pull from 12.5 to 13.5 inches, and a vertical grip, without the weight penalty. The buttstock folds and knocks more than 9 inches off the overall length, so the rifle can ride inside a pack instead of snagging on brush strapped to the outside. An integral ARCA rail on the forend clips straight onto a tripod, and AICS-pattern magazine compatibility means feeding it is never a problem. It ships set up for 3+1 capacity.
Built Around the 25 Weatherby RPM
The 25 RPM chambering is what makes this particular rifle interesting. The quick 1:7.5 twist in the 22 inch spiral-fluted barrel stabilizes the long, heavy-for-caliber .257 bullets that older quarter-bores simply can't run, so you get high ballistic coefficients, flat trajectories, and mild recoil in one package. It hits above its weight on deer and antelope at distance without beating you up at the bench. The barrel wears Graphite Black Cerakote, comes threaded 1/2-28, and includes Weatherby's Accubrake to tame what little recoil there is.
Why the 307 Alpine MDT Stands Out
Add in the TriggerTech Field trigger with its zero-creep break and external adjustment down to 2.5 pounds, a tool-less three-piece bolt you can strip in the field, and an M16-style extractor, and you have a 6.9 pound rifle that works as hard at the range as it does on the mountain.
Key Specifications
- Manufacturer Part Number: 3WAMH25RWR4B
- UPC: 747115463619
- Caliber: 25 Weatherby RPM
- Action: Model 307 Bolt Action, 2-Lug, 700 Footprint
- Barrel Length: 22" (24" including muzzle brake)
- Barrel: Spiral Fluted, Threaded 1/2-28 with Accubrake
- Twist Rate: 1:7.5
- Capacity: 3+1, AICS-Pattern Magazine
- Stock: MDT HNT26 Folding Chassis, Magnesium/Carbon Fiber
- Length of Pull: 12.5" – 13.5" Adjustable
- Cheekpiece: Adjustable
- Trigger: TriggerTech Field, Externally Adjustable to 2.5 lbs
- Safety: Two-Position
- Weight: 6.9 lbs
- Finish: Graphite Black Cerakote
- Accuracy Guarantee: Sub-MOA (3-shot group of .99" or less at 100 yards)
What’s Included
- Weatherby Model 307 Alpine MDT rifle
- One AICS-pattern detachable magazine
- Accubrake muzzle brake (factory installed)
- Owner's manual
Frequently Asked Questions
What is the 25 Weatherby RPM cartridge good for?
The 25 RPM is a modern quarter-bore built to run long, heavy, high-BC .257 caliber bullets that older .25s can't stabilize. The 1:7.5 twist in this Alpine MDT handles those bullets easily, giving you flat trajectories and strong downrange energy with noticeably less recoil than the 6.5 and 7mm magnums. It shines on deer, antelope, and similar game at extended ranges.
Is the 307 Alpine MDT compatible with Remington 700 parts?
Yes, that's one of the biggest selling points of the Model 307 platform. The action uses a fully cylindrical 700 footprint, so it accepts most aftermarket 700-pattern stocks, triggers, rails, and bottom metal. It also feeds from common AICS-pattern magazines, so spares are easy to find.
Can I run a suppressor on this rifle?
You can. The 22 inch barrel is threaded 1/2-28 underneath the included Accubrake, so you can swap the brake off and thread on a compatible suppressor or adapter. The spiral fluting also helps the barrel shed heat during longer strings.
How compact does the Weatherby Alpine MDT get with the stock folded?
Folding the HNT26 buttstock cuts more than 9 inches off the overall length, which makes it short enough to slide inside a hunting pack rather than lashing it to the outside. That's a real advantage on horseback hunts, backcountry trips, or anywhere you're scrambling through timber. The stock locks up solid when deployed, so there's no wobble when it's time to shoot.




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