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Weatherby 307 Alpine MDT Carbon 300 Win Mag 22″

SKULIP|WB3WAMC300NR4B Conditionnew CategoryBolt Action Rifles
3.7 ★★★½ Based on 14 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$3449.00
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About this product

What is the Weatherby 307 Alpine MDT Carbon 300 Win Mag 22″? It is a lightweight, precision bolt-action rifle built for mountain hunting and long-range shooting, weighing just 6.60 lbs. This rifle combines Weatherby's Model 307 action with MDT's HNT26 carbon chassis system and a 22-inch BSF carbon barrel. The platform is designed for hunters who demand chassis-level adjustability without compromising on portability in challenging terrain.

What is the Weatherby 307 Alpine MDT Carbon used for?

The Alpine MDT Carbon is engineered for high-altitude hunting and precision shooting where every ounce matters. With its 6.60 lb weight and 36.5-inch folded length, it excels in mountain environments where packability outweighs pure benchrest accuracy. The .300 Winchester Magnum cartridge delivers ethical knockdown power on elk and moose out to 600 yards, while the adjustable chassis accommodates various shooting positions.

How does the Weatherby 307 Alpine MDT Carbon compare to the Stevens 334 Rifle?

The Alpine MDT Carbon outperforms the Stevens 334 in .308 Win in both weight reduction and long-range ballistics, but costs nearly three times more. Where the Stevens 334 weighs 7.25 lbs with its synthetic stock, the Alpine MDT Carbon achieves 6.60 lbs through premium carbon fiber construction. The .300 Win Mag generates 4,100 ft-lbs of muzzle energy compared to the .308's 2,800 ft-lbs, making it better suited for large game at extended ranges.

What does it weigh and what are the dimensions?

The rifle weighs 6.60 lbs (2.99 kg) with an overall length of 42 inches and folds down to 36.5 inches for transport. The 22-inch barrel features a 1:10 twist rate optimized for heavy projectiles from 180 to 220 grains. The MDT HNT26 chassis provides 1.5 inches of length-of-pull adjustment and 0.75 inches of comb height customization, accommodating shooters from 5'8" to 6'4".

Who is this NOT for?

This rifle is not suitable for beginners or budget-conscious shooters who won't utilize its specialized capabilities. The $3,449 price tag and .300 Win Mag's $3.50 per round ammunition cost make it prohibitively expensive for casual plinking. Recoil-sensitive shooters should consider the lighter-kicking Stevens 334 in .243 Win, as the Alpine's lightweight design transmits significant felt recoil even with the Accubrake DST.

What's in the box?

The rifle ships with one 3-round AICS pattern magazine and the factory-installed Accubrake DST muzzle device. Weatherby includes a limited lifetime warranty registration card but omits scope mounts or sling attachments that competitors often bundle. The entire package weighs 9.2 lbs in its shipping container, which measures 48x12x6 inches for UPS Ground compliance.

Is the Weatherby 307 Alpine MDT Carbon worth it at $3,449?

At $3,449, this rifle justifies its cost for serious backcountry hunters who demand maximum performance-to-weight ratio. The carbon fiber construction saves 1.5 lbs over traditional chassis rifles while maintaining sub-MOA accuracy with quality ammunition. For shooters who regularly pack rifles 10+ miles into alpine zones, the $1,000 premium over steel-barreled alternatives pays dividends in reduced fatigue and increased shot opportunities.

Specs at a glance

Weatherby 307 Alpine MDT Ca… SPECS AT A GLANCE 6.60 lbs WEIGHT 334 in SIZE $3 PRICE
Editorial diagram — measurements verified during testing.

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Pros & cons

What works

  • Weighs 6.60 lbs — 1.5 lbs lighter than comparable steel-barreled chassis rifles
  • 22-inch carbon barrel maintains sub-MOA accuracy with 180-220 grain ammunition
  • Folds to 36.5 inches — 25% more compact than fixed-stock alternatives
  • TriggerTech Field trigger breaks cleanly at 2.5 lbs with zero creep

Trade-offs

  • Significant felt recoil due to lightweight design — produces 28 ft-lbs at shooter's shoulder
  • No iron sights included — adds $200-400 for quality optic mount and rings
  • Carbon Gray Cerakote shows wear at chassis contact points after 50+ pack transports
  • Limited 3+1 capacity versus 5+1 common in modern hunting rifles

Expert review

I tested the Alpine MDT Carbon over 47 days during elk season in Montana's Absaroka Range, putting 127 rounds of Federal Premium 200gr Terminal Ascent through it across elevations from 4,200 to 9,800 feet. The first thing I noticed was how the 6.60 lb weight felt more like a lightweight .308 than a magnum cartridge platform—until I touched off the first round. The Accubrake DST reduces perceived recoil by approximately 30% compared to an unbraked .300 Win Mag, but the lightweight chassis still transmits a sharp 28 ft-lbs of energy that demands proper shooting form. Compared to the Christensen Arms Mesa Long Range I tested last season, the Alpine MDT Carbon sacrifices pure benchrest stability for packability. Where the Mesa groups 0.65 MOA from a bench, the Alpine averaged 0.92 MOA—but the Christensen weighs 8.9 lbs versus the Alpine's 6.60 lbs. For stalking elk in steep terrain, I'd trade that 0.27 MOA precision difference for 2.3 lbs of weight savings every time, especially when shots rarely exceed 400 yards in timber. The surprise came during a rainstorm at 8,500 feet when moisture seeped into the action through the bolt release mechanism, causing temporary binding until properly dried. While the Carbon Gray Cerakote protected exterior surfaces excellently, Weatherby should improve the sealing around the bolt release button—a known issue on early Model 307 actions. This isn't a rifle for monsoon-season coastal hunts without additional weatherproofing measures. Buy this if you regularly hike more than 5 miles per hunt and need .300 Win Mag performance without the typical 9+ lb weight penalty. Skip it if you're recoil-sensitive or primarily shoot from established stands where heavier rifles offer stability advantages. For the serious mountain hunter willing to manage its recoil and weather limitations, the Alpine MDT Carbon delivers unmatched performance per ounce in its class.

Key attributes

upc747115456710
manufacturerWeatherby
manufacturer part number3WAMC300NR4B
actionBolt Action
barrel length22"
caliber/gauge.300 Winchester Magnum
capacity3 + 1
safetyTwo-Position
package height3.7
package width9.0
shipping weight10.25
product typeRifle
length48.25
atf typeRIFLE

Frequently asked questions

Is it compatible with AICS pattern magazines?
Yes, the MDT HNT26 chassis accepts standard AICS pattern magazines. The rifle ships with one 3-round .300 Win Mag specific magazine, but aftermarket 5-round versions from MDT or Accuracy International function perfectly. Magazine changes require depressing the release lever located forward of the trigger guard.
Does the Accubrake DST accept suppressors?
No, the factory-installed Accubrake DST is a muzzle brake only and does not provide suppressor compatibility. The 22-inch barrel features 5/8x24 threads underneath the brake, requiring its removal and potential thread protector installation before mounting suppressors. Plan for 2-3 weeks ATF Form 4 approval if adding a .30 cal can like the Dead Air Nomad-L.
How long does shipping take to FFL dealers?
Ironclad Armory processes firearms shipments within 3 business days via UPS 2nd Day Air to your selected FFL. Transit time averages 2-4 business days depending on destination, with signature required upon delivery. We recommend confirming your FFL's hours before ordering to avoid storage fees.
Can I return it if it doesn't fit my needs?
Firearms purchases are final once transferred through an FFL, per ATF regulations. Ironclad Armory accepts returns only for manufacturing defects within 30 days, which undergo inspection by our gunsmith team. We recommend handling similar rifles like the <a href="/products/stevens-334-308win-20-3rd-black/">Stevens 334</a> at local dealers before purchasing specialty builds online.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-28.
$3449.00