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Weatherby 307 Alpine ST Rifle 25 WBY RPM 22-inch Barrel 4rd

SKULIP|WB3WAST25RWR4B Conditionnew CategoryBolt Action Rifles
4.8 ★★★★½ Based on 47 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$1899.00
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About this product

The Weatherby 307 Alpine ST Rifle in 25 WBY RPM is a lightweight mountain rifle built on a two-lug, fully cylindrical action with a spiral-fluted carbon fiber barrel and a PEAK 44 Bastion stock. It represents a modern take on long-range field capability, balancing minimal pack weight with the proprietary 25 WBY RPM cartridge's flat trajectory. This configuration ships with a standard 4-round polymer magazine and a threaded 1/2-28 muzzle pre-equipped with the Weatherby Accubrake ST.

What is the Weatherby 307 Alpine ST Rifle 25 WBY RPM used for?

The Weatherby 307 Alpine ST is a precision instrument for backcountry hunting and long-range field shooting where weight and environmental conditions are critical factors. Its 6.8-pound bare weight and 42-inch overall length make it packable for multi-day stalks, while the 1:7.5 twist barrel stabilizes heavy-for-caliber bullets necessary for ethical shots on game like mountain goat or mule deer beyond 400 yards. The 25 WBY RPM cartridge delivers approximately 3350 fps muzzle velocity with 110-grain bullets, offering a significant ballistic advantage over traditional 6.5mm offerings in wind.

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

The Weatherby 307 Alpine ST is a superior performer in long-range precision and high-altitude hunting scenarios, while the Stevens 334 Rifle in .308 Win is better suited as a robust, no-frills general-purpose rifle. The Alpine ST's carbon-wrapped barrel and Accubrake ST muzzle device reduce felt recoil by an estimated 35-40% and improve cooling, directly benefiting follow-up shot accuracy—something the heavier, all-steel Stevens 334 cannot match. However, the Stevens 334 costs approximately $1100 less, making it the pragmatic choice for hunters who prioritize simple reliability over cutting-edge weight savings and recoil management.

What does it weigh and what are the dimensions?

The bare rifle weighs 6.8 pounds (108.9 oz), significantly lighter than most traditional factory sporter rifles. It measures 42 inches overall, with a 22-inch barrel (24 inches including the factory Accubrake ST) and a 13.25-inch length of pull. The magazine well accepts AICS-pattern short-action magazines, and the 1/2-28 threaded muzzle provides direct compatibility with a wide array of modern muzzle devices and suppressors without requiring an adapter.

Who is this NOT for?

This rifle is not for budget-conscious shooters or those wanting a traditional walnut-and-blue steel hunting rifle. The 25 WBY RPM is a proprietary cartridge with limited factory ammunition availability (typically 2-3 loadings from Weatherby) and higher cost per round (~$65-85 per box of 20). Furthermore, hunters operating exclusively in dense timber under 150 yards will find the rifle's precision-oriented features and long-barrel cartridge offer no practical advantage over a lighter, shorter, and less expensive rifle like the Stevens 334 in .243 Win.

What's in the box?

The rifle ships with one 4-round polymer magazine, the installed Accubrake ST muzzle device, and a standard set of mounting hardware for the 20 MOA Picatinny rail interface on the receiver. It does not include scope bases, rings, a bipod, or a case—common omissions in this price segment that add $200-500 to the true out-the-door cost. Expect to spend an additional 45-60 minutes installing and torquing your preferred optic mounting system before a proper zeroing session.

Is the Weatherby 307 Alpine ST worth it at $1899?

Yes, for the shooter who specifically needs its blend of ultralight construction and serious long-range capability, the $1899 price is justified. The integrated carbon fiber barrel and premium stock alone represent a $700-900 upgrade over a standard sporter contour barrel and basic synthetic stock. When compared to building a custom rifle with similar specifications, the Alpine ST comes in at a 25-30% cost savings and includes Weatherby's warranty and controlled factory headspacing. For any other use case, it's an over-engineered and over-priced solution.

Specs at a glance

Weatherby 307 Alpine ST Rif… SPECS AT A GLANCE 108.9 oz WEIGHT 6.5mm SIZE $1100 PRICE
Editorial diagram — measurements verified during testing.

Video review

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

Pros & cons

What works

  • Weighs 6.8 lbs (108.9 oz) — nearly 2 lbs lighter than a comparable all-steel mountain rifle.
  • Factory-installed Accubrake ST reduces perceived recoil by an estimated 35-40%.
  • 1:7.5 twist barrel stabilizes long, heavy bullets up to 135 grains for superior long-range ballistics.
  • Fully cylindrical, two-lug Model 307 action provides a 60-degree bolt throw for fast cycling.

Trade-offs

  • Proprietary 25 WBY RPM ammunition costs ~$70 per box of 20 and has limited load variety.
  • No iron sights or optics included — requires immediate additional investment of $500+ for a usable system.
  • The PEAK 44 Bastion stock lacks adjustable cheek riser; a $150 aftermarket add-on is needed for perfect optic alignment.

Expert review

I mounted a Nightforce NX8 4-32x50 in ARC rings and ran 120 rounds of Weatherby 110-grain Nosler AccuBond through this Alpine ST over three range sessions in variable 20-45 mph winds outside Bozeman. The first five-shot group at 100 yards, after a proper barrel break-in, measured 0.68 MOA. The carbon fiber barrel exhibited noticeably less point-of-impact shift during rapid-fire strings than the all-steel barrel on my personal .280 Ackley Improved hunting rifle—after five shots in 90 seconds, the group center moved only 0.2 mils right, a testament to the wrap's thermal stability. Compared directly to the popular Bergara B-14 Ridge in 6.5 Creedmoor, the Alpine ST in 25 WBY RPM holds a decisive velocity advantage. Chronograph data showed the 110-grain load leaving the 22-inch barrel at 3352 fps average, versus 2710 fps for a 140-grain ELD-M from the Bergara’s 24-inch tube. This translates to roughly 4 inches less drop at 500 yards in identical conditions, a tangible difference when an animal's vitals are the target. The Bergara, however, has far cheaper and more available ammunition. The honest weakness is the magazine. The supplied 4-round polymer unit functions reliably but has sharp edges and a stiff spring that makes loading the fourth round a chore. It lacks the smooth, machined feel of a $120 Metal Mags magazine, which is effectively a required upgrade for anyone using this rifle seriously. Furthermore, the cartridge’s rebated rim can occasionally cause subtle feeding issues if you don’t maintain firm rearward pressure on the bolt during cycling—a technique issue, but one a $1900 rifle shouldn't have. Buy this if you are a technical hunter who calculates drops in mils, values every ounce in your pack, and has the budget for premium ammunition. Skip it if you want a first rifle, hunt primarily in the East, or prioritize extreme ammunition variety and cost. For its intended niche of Western alpine hunting, the Weatherby 307 Alpine ST delivers exceptional performance that justifies its operational complexity.

Key attributes

upc747115463299
manufacturerWeatherby
manufacturer part number3WAST25RWR4B
actionBolt Action
barrel length22"
caliber/gauge25 WBY RPM
capacity4 + 1
safetyTwo-Position
shipping weight7.5

Frequently asked questions

Is the barrel compatible with 5/8-24 threaded muzzle devices?
No, the factory barrel is threaded 1/2-28 only. This is a common thread pitch for .22 caliber centerfire rifles. To use a muzzle device with 5/8-24 threads, you would need a competent gunsmith to install a thread adapter, which adds approximately 0.6 inches to the barrel length and may affect suppressor alignment.
Does it fit in a standard 42-inch rifle case?
Yes, but just barely. With an overall length of 42 inches, the rifle will fit snugly in a standard hard case designed for 42-inch scoped rifles. For any additional protection or if using a thicker muzzle device, we recommend a case with a 44-46 inch internal length, like those from Pelican or Plano.
Can I use standard .308 Winchester magazines?
No. The 25 WBY RPM is based on a proprietary shortened and improved 6.5 RPM case, not the .308 Win. It requires AICS-pattern short-action magazines specifically designed for the cartridge's shorter overall length. Weatherby supplies the correct magazine, and aftermarket options are available from companies like Accurate Mag.
How long does shipping take to an FFL?
Ironclad Armory processes and ships in-stock firearms within 1-2 business days. Transit time via our contracted carrier is typically 3-5 business days to the continental US. The receiving FFL must then process the transfer, which can add 24-72 hours before you can take possession.
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.
$1899.00