Bergara Premier Barreled Action .300 Win Mag 24in CURE Carbon

The Bergara Premier Barreled Action .300 Win Mag 24in CURE Carbon is a precision-oriented action and barrel assembly built for shooters who demand sub-MOA performance without the weight penalty of a steel tube. This barreled action uses Bergara’s Cold Bore Technology and a 1:10 twist No.6 CURE carbon barrel, chambered in .300 Winchester Magnum, with a threaded 5/8×24 muzzle and thread protector. The Remington 700 footprint action features a spiral-fluted bolt, enlarged handle, dual ejectors, and a sliding plate extractor, all finished in raw stainless steel.

Key Features

• CURE carbon fiber barrel with Cold Bore Technology: The No.6 contour barrel uses a carbon fiber wrap over a steel liner, reducing weight by roughly 40% compared to a steel barrel of the same contour. Cold Bore Technology means the first cold-bore shot lands inside the same group as follow-up shots — critical for hunting and match stages.
• Spiral-fluted bolt with enlarged handle: The fluting reduces bolt mass for faster cycling and adds surface area for debris clearance. The oversized handle gives you positive purchase even with gloved hands or in wet conditions.
• Dual ejectors and sliding plate extractor: Dual ejectors ensure consistent ejection of spent .300 Win Mag cases. The sliding plate extractor provides controlled round feed, reducing the risk of rim damage during extraction.
• Remington 700 footprint: Drop this barreled action into any R700 short-action stock or chassis without additional machining. This opens up compatibility with a huge ecosystem of aftermarket triggers, stocks, and bottom metal.
• Threaded muzzle (5/8×24) with thread protector: Ready for a suppressor or muzzle brake out of the box. The 5/8×24 thread pattern is standard for .30-caliber muzzle devices, so you can mount your existing can or brake without an adapter.

Who It’s For

This barreled action is built for long-range hunters and precision rifle shooters who want a lightweight .300 Win Mag platform. If you’re building a rifle for mountain hunting where every ounce matters, or you need a magnum action that still holds 0.5 MOA with handloads, this is a strong candidate. It’s also a solid option for shooters who already own an R700-compatible chassis and want to upgrade to a carbon-barrel magnum without buying a complete rifle.

Pros and Cons

• Pro: Carbon fiber barrel saves significant weight — the entire barreled action weighs under 4 lbs, making it ideal for long pack hunts.
• Pro: Bergara’s reputation for accuracy; many users report sub-0.75 MOA groups with quality factory ammunition.
• Pro: R700 footprint means you can use aftermarket triggers and stocks from Geissele, Timney, and others without modification.
• Con: The raw stainless finish is prone to corrosion in humid or coastal environments — plan to apply a light oil or Cerakote if you hunt in wet conditions.
• Con: .300 Win Mag recoil is stout in a lightweight build — a muzzle brake or suppressor is strongly recommended for range sessions.

Comparison: Bergara Premier vs. Alternatives

The Zev and Geissele options offer tighter tolerances and hand-fitting, but at a higher price and heavier weight. The Bergara gives you carbon fiber weight savings and proven accuracy at a lower price point — a better value for most shooters building a lightweight magnum.

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Barreled Actions | Rifle Parts | Bergara Parts

Last updated: April 2026