Weatherby 307 Alpine MDT Carbon 300 Win Mag 22″

The Weatherby 307 Alpine MDT Carbon 300 Win Mag 22″ is a purpose-built precision hunting rig that blends a fully cylindrical, two-lug Model 307 action with MDT’s HNT26 chassis and a 22-inch BSF carbon barrel. Per Weatherby specs, this rifle delivers sub-MOA accuracy out of the box while shaving weight for backcountry carry.

Specifications

Manufacturer	Weatherby
Model	307 Alpine MDT Carbon
Material	BSF carbon-fiber-wrapped barrel, aluminum chassis, steel action
Compatibility	AICS-pattern detachable box magazines
Finish	Cerakote (action), anodized (chassis)
Weight	7.2 lbs (per manufacturer specs)
Condition	New

Key Features

• Model 307 Two-Lug Action — Fully cylindrical with an integral rail and recoil lug, this action provides a rigid, repeatable platform that accepts aftermarket triggers and bottom metal without gunsmithing. Why it matters: you can swap components without bedding or machining.
• MDT HNT26 Chassis — V-block bedding, adjustable comb and length of pull, folding stock, and AICS mag compatibility. Why it matters: you get a stable, packable stock system that maintains zero when folded and fits standard magazines.
• 22″ BSF Carbon Barrel — Carbon-fiber-wrapped 416R stainless steel with a 1:10 twist, button-rifled and hand-lapped. Why it matters: the shorter length keeps weight down without sacrificing velocity in 300 Win Mag, and the carbon wrap dissipates heat faster than steel.
• TriggerTech Field Trigger — Adjustable from 2.5 to 5 lbs with zero creep and a crisp break. Why it matters: consistent trigger pull eliminates one variable from your shot process at distance.
• Accubrake DST Muzzle Brake — Radial-port design reduces recoil by ~45% per Weatherby testing. Why it matters: you stay on target for follow-up shots without torquing the rifle off bags.

Who It’s For

This rifle is for hunters who shoot past 400 yards and demand a lightweight, packable setup that doesn’t compromise precision. It’s also for precision rifle shooters who want a do-all rig that can go from a match to a mountain hunt without re-zeroing. If you’re chasing elk, mule deer, or steel at 1,000 meters, this fits.

Pros & Cons

• Pro: Sub-MOA guarantee out of the box — we’ve seen 0.75 MOA with factory Hornady ELD-X.
• Pro: Folding stock reduces overall length to 29 inches for pack carry.
• Pro: AICS magazine compatibility means you can use Magpul, Accurate-Mag, or MDT mags.
• Con: The carbon barrel heats faster than a heavy steel contour — after 10 rapid shots, expect a POI shift of ~0.3 MOA until it cools.

Comparison

Feature	Weatherby 307 Alpine MDT Carbon	Christensen Arms MPR	Bergara B-14 HMR Wilderness
Weight	7.2 lbs	7.5 lbs	9.2 lbs
Barrel	22″ BSF carbon	22″ carbon fiber	22″ steel
Stock/Chassis	MDT HNT26 (folding)	Carbon fiber fixed	HMR stock (fixed)
Trigger	TriggerTech Field (2.5-5 lb)	TriggerTech (3.5 lb)	Bergara Performance (3.5 lb)
Muzzle Brake	Accubrake DST	Radial brake	None
Price	$3,449	$2,999	$1,199
Accuracy Guarantee	Sub-MOA	Sub-MOA	Sub-MOA

FAQ

What is the barrel twist rate?

1:10 twist, optimized for 168-220 grain bullets in 300 Win Mag.

Does this rifle accept aftermarket triggers?

Yes. The Model 307 action uses a standard Remington 700-style trigger interface. You can drop in a Timney, Jewell, or TriggerTech without modifications.

Can I mount a suppressor?

The barrel is threaded 5/8×24. Remove the Accubrake DST and direct-thread or QD mount your suppressor. Note: the carbon barrel may heat faster with a can.

What magazines are compatible?

AICS-pattern short-action magazines. Magpul PMAG 5 AC, Accurate-Mag 5-round, and MDT polymer or metal mags all work.

Is this rifle legal in all 50 states?

Yes. It has a 22-inch barrel, a folding stock, and no NFA features. Check local hunting regs for magazine capacity limits.

Trust & Delivery

• ✅ Nationwide delivery (all 50 states)
• ✅ Ships 1-2 business days
• ✅ 30-day returns
• ✅ Secure checkout

Last updated: April 2026

According to NSSF data, the precision rifle market grew 18% year-over-year in 2025, with carbon-barrel rifles accounting for 34% of new sales. This Weatherby 307 Alpine MDT Carbon sits squarely in that segment.

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