The Weatherby Model 307 Builders Action in short action with a magnum bolt face (brand part no. 3WBSM) is the foundation for a custom rifle build. Weatherby machines the action with a spiral-fluted bolt and a reliable M16-style extractor, and a tool-less takedown makes field maintenance simple. Its footprint is similar to the popular Remington 700 platform, so most aftermarket 700 triggers, stocks and bottom metals fit. Serious builders will appreciate how much of the work is already done.

Key Specifications

• The action length is short action, sized for short-action cartridges and a compact build.
• The bolt face is a magnum bolt face, the configuration this listing is made for.
• The bolt is a spiral-fluted design with an M16-style extractor for positive extraction and smooth cycling.
• The bolt knob is threaded 5/16×24, ready for an aftermarket knob of your choice.
• The receiver is tapped for 8-40 scope base screws and is compatible with Stiller and Savage style mounts.

Frequently Asked Questions

Will aftermarket 700 parts fit the Model 307 action? Weatherby states the Model 307 has a footprint similar to the Remington 700 and is compatible with most aftermarket 700 accessories, including triggers, stocks and bottom metals.

Can I mount a scope without drilling? Yes. The action is tapped for 8-40 screws, so scope mounts or a Picatinny rail bolt on directly.

Is the bolt knob replaceable? Yes. The bolt knob is threaded 5/16×24, so an aftermarket knob can be installed.

Buy the Weatherby Model 307 Builders Action, Short Action, Magnum Bolt Face

A Builders Action lets you choose the barrel, stock and trigger, and the Model 307 gives you a modern, 700-compatible start. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more rifle parts for the rest of your build.