Description
Weatherby waited more than five decades to release a new action, and the Model 307 shows they spent that time paying attention. This Long Standard version wears a .473 inch bolt face, which covers classics like .270 Win, .25-06 Rem, and .30-06 Springfield, making it a natural starting point for a do-it-all hunting build or a long action precision project. The whole thing comes finished in graphite black Cerakote, so it will shrug off weather and range wear from day one.
Why the 307 Builders Action Plays Nice with Your Parts Bin
The big story here is compatibility. The 307 shares a footprint with the Remington 700, which means the mountain of aftermarket stocks, chassis, triggers, and bottom metals already on the market will work with it. Weatherby even positioned the bolt release high on the receiver so it clears 700-pattern stocks and chassis without any inletting headaches. The receiver comes drilled and tapped for 8-40 screws and accepts Stiller and Savage pattern mounts, so getting a rail or bases on top is simple. Barrel tenon threads are the standard 1-1/16×16 at .880 inches long, the same setup any gunsmith who has worked on a 700 will know by heart.
Details That Make the Weatherby 307 Worth Building On
The two-lug, spiral fluted bolt runs a proven M16-style extractor for positive extraction and smooth cycling, and it breaks down without tools for quick cleaning at home or in the field. The bolt knob is threaded 5/16×24, so swapping in an oversized knob takes about a minute. With a 90 degree bolt throw, 8.7 inch overall length, and a weight of just 1.78 pounds, this long action keeps your build from getting heavy before the barrel ever goes on. The 3.95 inch magazine box length also leaves room for longer loaded rounds if you like to seat bullets out.
If a custom bolt gun has been on your list, this is a smart foundation from a company that has been building rifles since 1945. Pick your barrel, pick your stock, and get to work.
Key Specifications
- Manufacturer: Weatherby
- Manufacturer Part Number: 3WBLS
- UPC: 747115453139
- Action Type: 2-lug bolt action, long action
- Bolt Face Diameter: .473 in (long action standard)
- Bolt Throw: 90 degrees
- Bolt Design: Spiral fluted with M16-style extractor, tool-less takedown
- Bolt Knob Threads: 5/16×24
- Barrel Tenon Threads: 1-1/16×16, .880 in long (standard Rem 700)
- Scope Mount Screws: 8-40, compatible with Stiller/Savage pattern mounts
- Magazine Box Length: 3.95 in
- Overall Length: 8.7 in
- Weight: 1.78 lbs
- Finish: Graphite Black Cerakote
- Footprint: Remington 700 pattern
- Made In: USA
What’s Included
- Weatherby Model 307 long action standard receiver
- Spiral fluted 2-lug bolt assembly
Frequently Asked Questions
What calibers work with the Weatherby 307 Builders Action Long Standard?
This version has a .473 inch bolt face and a long action magazine box, so it covers standard long action cartridges like .270 Win, .30-06 Springfield, and .25-06 Rem. If you want to run belted magnums like 7mm Rem Mag or .300 Win Mag, look at the Long Magnum version with the .543 inch bolt face instead.
Will Remington 700 stocks and triggers fit the Model 307 action?
Yes, that was the whole point of the design. The 307 shares a footprint with the Remington 700, so most aftermarket 700 stocks, chassis, triggers, and bottom metals fit. Weatherby even set the bolt release high on the receiver so it clears 700-pattern stocks without modification.
Does the 307 Builders Action come with a barrel or trigger?
No, this is a stripped builders action, meaning you get the receiver and bolt only. You supply the barrel, trigger, stock, and bottom metal, which is exactly what makes it a blank canvas for a custom build. Barrel tenon threads are the standard 700 pattern, so any competent gunsmith can spin on the barrel of your choice.
How do I mount a scope on the Weatherby 307 action?
The receiver comes drilled and tapped for 8-40 screws, which are beefier than the 6-48 screws found on many older actions. It accepts Stiller and Savage pattern bases and rails, and Weatherby also offers Talley mounts made specifically for the 307. Just pick your rail or rings and bolt them on.




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