Weatherby Weatherby 307 Builders Action Short Magnum Black 1-1/16"-16 Thread Pitch 3WBSM

The Weatherby Model 307 Builders Action offers a versatile platform for creating a custom bolt-action rifle. Designed with a 2-lug cylindrical bolt, it features a spiral-fluted design, a reliable M16 extractor, and tool-less takedown for ease of maintenance. Compatible with most aftermarket Remington 700 accessories, including stocks, triggers, and bottom metals, this action allows builders the flexibility to craft a rifle tailored to their needs. Tapped for scope mounts or a Picatinny rail, the Model 307 is ready for customization and built with the precision craftsmanship that Weatherby is known for since 1945. 2-lug cylindrical bolt design;Spiral-fluted bolt with a reliable M16 extractor for smooth cycling and positive ejection;Tool-less takedown for easy disassembly and maintenance;Bolt knob threaded at 5/16-24 pitch for aftermarket knob compatibility;Compatible with most Remington 700 platform accessories, including stocks, triggers, and bottom metals;Bolt release button positioned to fit Remington 700 aftermarket stocks and chassis;Tapped and ready for scope mounts or a Picatinny rail with 8-40 threads;Headspace adjustment: .899" +/- .000 (bolt face to recoil lug);Short action length: 7.9 inches; long action length: 8.7 inches;Short action weight: 1.65 lbs; long action weight: 1.78 lbs;Bolt throw: 90-degree throw for smooth operation;Short action bolt face size: .473 inches; long action standard bolt face size: .473 inches;Long action magnum bolt face size: .543 inches;Short action mag box length: 2.97 inches; long action mag box length: 3.95 inches;Finished with Graphite Black Cerakote for durability and weather resistance Manufacturer Part Number: 3WBSM