Weatherby Model 307 Action – Bynuna Custom “Ratherby” Precision Receiver
The Weatherby Model 307 Receiver, refined by Bynuna Custom Shop, combines the proven reliability of the Remington 700 platform with the enhanced performance of a Stiller MK13-style cam system—delivering a smooth, fast, and precise bolt operation.
Built around Remington’s legendary “three rings of safety”, this action brings together the durability of the M24/M40 bolt design with modern machining improvements for today’s precision shooters and custom builders.
The result is the “Ratherby Model 307”—a high-performance, affordable custom action that bridges classic design with upgraded functionality.
Why Choose the Ratherby Model 307
Smooth MK13-style cam for crisp bolt lift and fast cycling
Based on the trusted Remington 700 footprint
Compatible with Rem 700 stocks, triggers, and chassis systems
Precision-machined for custom rifle builds
Designed for both entry-level builds and high-end custom rifles
Included Features
Weatherby Model 307 Receiver (Remington 700 Clone)
Recoil Lug Included
8-40 Scope Rail Compatibility
High-profile bolt release for improved stock/chassis fitment
Bolt and knob finished in Graphite Black Cerakote
Technical Specifications
Action Length Options
Short Action: 7.9" overall length
Long Action: 8.7" overall length
Weight
Short Action: 1.65 lbs
Long Action: 1.78 lbs
Bolt & Function
Bolt Throw: 90°
Bolt Knob Threads: 5/16"-24
Barrel Interface
Tenon Threads: 1-1/16"-16 (.880” long, Remington 700 standard)
Breech Dimensions:
.740" depth (from tenon shoulder)
.715" inner diameter
Headspace
.899" +/- .000 (Bolt Face to Recoil Lug)
Action Screws
1/4"-28
Magazine Length Compatibility
Short Action: 2.97"
Long Action: 3.95"
Perfect For
Whether you're building a budget precision rifle or a full custom lightweight setup, the Ratherby Model 307 delivers the performance, compatibility, and reliability needed for serious shooting applications
Trigger Sold Separately.
Note: This item will only ship to a Federal Firearms License Dealer (FFL). Before this product is shipped your FFL Dealer must email or fax a valid FFL to Cal Shooting Supplies. Your order maybe delayed if not received. For fastest processing, please include customer name and order id with the required documentation.
It is the responsibility of the purchaser, to check their local laws before ordering products from calshootingsupplies.com. Please check your State, County, and City laws for restrictions before ordering and always include the order number. All action kits have a varying ship time from 1 to 12 weeks, no statuses will be done on these items until the 12 week period has expired and a valid FFL is on file.
Absolutely no refunds, changes, or cancellations once your order is placed.
FFL Email Address: nikki@calshootingsupplies.com
