The Weatherby 307 Alpine MDT Carbon — 300 Weatherby Magnum is a factory-built precision rifle that pairs Weatherby’s Model 307 bolt action with MDT’s lightweight HNT26 chassis for serious backcountry hunting and long-range field use. This rifle comes ready to shoot with a BSF carbon fiber threaded barrel and Weatherby’s Accubrake DST to tame recoil and muzzle rise. It ships with an AICS-compatible magazine for reliable feeding in rough conditions, and the chassis gives you adjustable length of pull and comb height. At 46.25 inches overall and a weight that keeps you moving fast, this is a purpose-built mountain rifle for the 300 Weatherby Magnum shooter who demands accuracy without the bulk.
Specifications
| Manufacturer | Weatherby (per manufacturer specs) |
|---|---|
| Model | 307 Alpine MDT Carbon |
| Caliber | 300 Weatherby Magnum |
| Action | Bolt Action |
| Barrel | BSF carbon fiber, threaded, 24 inches (per manufacturer specs) |
| Muzzle Device | Weatherby Accubrake DST |
| Stock/Chassis | MDT HNT26 |
| Magazine | AICS pattern, 3-round |
| Overall Length | 46.25 inches |
| Weight | 6.5 lbs (per manufacturer specs) |
| Finish | Cerakote (chassis), carbon fiber (barrel) |
| Condition | New |
Key Features
- MDT HNT26 Chassis: This lightweight aluminum chassis gives you v-block bedding for accuracy, adjustable length of pull and comb height, and AICS magazine compatibility — so you can dial in your fit and feed rounds reliably in the field.
- BSF Carbon Fiber Threaded Barrel: The carbon-wrapped barrel cuts weight without sacrificing stiffness, helping you carry the rifle farther and shoot tighter groups. It’s threaded 5/8×24 for suppressor or brake use.
- Weatherby Accubrake DST: This dual-stage muzzle brake reduces recoil by up to 53% (per Weatherby specs) and keeps muzzle rise under control, letting you spot your own hits and get back on target fast.
- Model 307 Bolt Action: Weatherby’s updated 90-degree bolt throw gives you fast cycling and a smooth, crisp trigger pull. The three-lug bolt head provides solid lockup and easy extraction.
- AICS Magazine Compatibility: The rifle ships with a 3-round AICS-pattern magazine, and you can swap in standard AICS 5- or 10-rounders for more capacity. This means you’re not locked into proprietary mags.
Who It’s For
This rifle is built for the hunter who hikes miles into the backcountry and needs a lightweight, accurate rifle that can reach out past 500 yards. It’s also for the long-range shooter who wants a production rifle with custom-level features — adjustable chassis, carbon barrel, and a proven action — without waiting months for a build. If you shoot 300 Weatherby Magnum and want to carry less weight while keeping precision, this is your rifle.
Pros & Cons
- Pros: Lightweight carbon barrel and chassis; adjustable fit for any shooter; AICS mags are easy to find and swap; Accubrake DST tames heavy recoil; ready out of the box for hunting or target work.
- Cons: The 300 Weatherby Magnum cartridge produces significant recoil even with a brake — some shooters may prefer a milder caliber. The carbon barrel can heat up faster than steel during rapid fire strings, so it’s best for hunting and slow-fire precision rather than high-volume range sessions.
Comparison
| Feature | Weatherby 307 Alpine MDT Carbon | Zev Technologies OZ9 Long Slide | Geissele Super Duty Rifle |
|---|---|---|---|
| Platform | Bolt action — 300 Win Mag | Pistol — 9mm | AR-15 — 5.56mm |
| Intended Use | Hunting / long-range | Competition / duty | Duty / tactical |
| Weight | 6.5 lbs (per manufacturer specs) | ~28 oz | ~7.5 lbs |
| Barrel Material | Carbon fiber wrapped | Stainless steel | Chrome-lined steel |
| Stock/Chassis | Adjustable MDT HNT26 | Grip module | Fixed stock |
| Magazine Type | AICS pattern | Double-stack 9mm | AR-15 pattern |
FAQ
What is the effective range of the Weatherby 307 Alpine MDT Carbon in 300 Weatherby Magnum?
With quality ammunition, this rifle is capable of consistent hits on man-sized targets out to 800-1000 yards. The 300 Weatherby Magnum cartridge retains energy well at distance, and the carbon barrel with Accubrake DST helps you stay on target for follow-up shots.
Does this rifle come with a scope or rings?
No, the rifle ships as a barreled action with the MDT chassis and a 3-round AICS magazine. You’ll need to add your own optics and rings. The receiver is drilled and tapped for standard Weaver/Picatinny bases.
Can I use standard AICS magazines with this rifle?
Yes, the MDT HNT26 chassis is designed to accept AICS-pattern magazines. The rifle ships with a 3-round AICS mag, but you can swap in 5- or 10-round AICS magazines from MDT, Magpul, or other manufacturers.
What is the barrel twist rate and length?
Per manufacturer specs, the BSF carbon fiber barrel has a 1:10 twist rate and is 24 inches long. It is threaded 5/8×24 for muzzle devices.
Is the Accubrake DST removable?
Yes, the Accubrake DST is threaded onto the barrel and can be removed or replaced with a suppressor or other muzzle device. The barrel is threaded 5/8×24.
Trust & Delivery
- ✅ Nationwide delivery to all 50 states
- ✅ Ships within 1-2 business days
- ✅ 30-day return policy
- ✅ Secure checkout with encryption
Last updated: April 2026
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