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

The Weatherby 307 Alpine ST is a lightweight bolt-action rifle built on Weatherby’s Model 307 platform. It pairs a spiral-fluted carbon fiber barrel with Weatherby’s Accubrake ST muzzle device and a PEAK 44 Bastion stock to produce a compact, field-oriented rifle. The action is a two-lug fully cylindrical Model 307 design compatible with a wide range of aftermarket stocks, triggers, rails, mounts, and magazines. This Alpine ST configuration ships with a 4-round magazine and a 1/2-28 threaded muzzle for brake or suppressor options.

Key Specifications

• Chambered in 25 WBY RPM.
• Built on the Model 307 two-lug fully cylindrical action.
• Barrel length is 22 inches.
• Barrel overall length (including muzzle device) is 24 inches (22″ barrel + 2″ muzzle brake).
• Barrel threads are 1/2-28.
• Barrel contour is MAG SPORTER.
• Twist rate is 1:7.5.
• Magazine capacity is 4 rounds.
• Overall length is 42 inches.
• Length of pull is 13.25 inches.

Purpose-built for mountain and range use, the Alpine ST balances lightweight construction with a feature set aimed at accurate, repeatable performance in the field. Its combination of a Model 307 action, threaded spiral-fluted carbon fiber barrel with Accubrake ST, and the PEAK 44 Bastion stock make it a precise, packable option for serious shooters who prioritize quality components and modern compatibility.