Weatherby 307 Builders Action Short Magnum | 1-1/16-16

The Weatherby Model 307 Builders Action is Weatherby’s first new action in over fifty years, created to serve as a versatile foundation for custom bolt-action rifles. It is purpose-built to accept a wide range of stocks, triggers, rails, mounts, and bottom metals found in the aftermarket. The action uses a 2-lug, spiral-fluted bolt with an M16 extractor and includes a convenient tool-less takedown for straightforward maintenance and disassembly.

Product Specifications

• The finish on the bolt and bolt knob is Graphite Black Cerakote.
• The overall length (Short Action) is 7.9.
• The bolt is a 2-lug cylindrical design with spiral fluting.
• The action features a tool-less takedown for easy disassembly and maintenance.
• The extractor type is a M16 extractor.
• The bolt throw is a 90-degree throw.
• The bolt knob thread pattern is 5/16-24.
• The headspace (Bolt Face to Recoil Lug) measures .899 +/- .000.
• The breech counterbore is .740 depth (measured from Tenon Shoulder) with an inner diameter of .715.
• The tenon threads are 1-1/16-16 and measure .880 long (Standard 700®).
• The action screw thread is 1/4-28.
• The magazine box length for Short Action is 2.97 inches.
• The action is compatible with most aftermarket Remington 700 accessories and is tapped for scope mounts or a Picatinny rail.
• The action is designed to accommodate stocks, triggers, rails, mounts, and bottom metals from the marketplace.
• UPC: 747115453122

Engineered for builders and gunsmiths who want a modern, adaptable platform, the Model 307 lets you tailor a rifle around contemporary stocks, triggers and bottom metals while retaining Weatherby’s long-standing attention to fit and finish. Its tool-less takedown and Remington 700 compatibility simplify installations and conversions, making this action a practical choice for precision-oriented custom projects or long-range hunting builds where a short-magnum footprint is desired.