The Redding .308 Winchester Small Base Body Die (Model 74155) is a specialised handloading tool engineered to resize the cartridge body diameter and bump the shoulder back without contacting or working the case neck. Built for use in standard 7/8"-14 threaded reloading presses, it contains no internal expander ball or decapping rod assembly. This design allows reloaders to restore critical chambering dimensions on brass fired multiple times while preserving exact neck tension and concentricity established by dedicated neck-sizing operations.

Key Features

• Neck-Free Body Resizing: Resizes the cartridge case body and sets back the shoulder without touching or altering the neck diameter.
• Small Base Dimensioning: Machined to reduce lower case body dimensions slightly below standard full-length specifications to ensure flawless chambering and extraction.
• Companion Die Integration: Designed specifically to complement Type S Bushing Style or Competition Neck Sizing dies when cases develop chambering resistance.
• Simplified Mechanical Build: Operates without decapping pins or expander assemblies, requiring separate depriming operations.

Product Specifications

• Calibre: .308 Winchester
• Thread Interface: Industry-standard 7/8"-14 reloading press threads
• Shellholder Compatibility: Standard Redding #1 shellholder
• Weight: 0.40 lb (approx. 181 g)
• Operation Type: Non-powered mechanical handloading die

Who is the Redding 308 Win Small Base Body Die for?

• Semi-Automatic and Gas-Operated Rifle Handloaders — requiring guaranteed feeding and extraction in platforms like AR-10 or M1A rifles, this small base reloading body die reduces the lower case body beyond standard dimensions for .308 Winchester brass using standard 7/8"-14 press mounts.
• Precision Shooters with Custom Match Chambers — operating tight-tolerance chambers cut tighter than SAAMI minimums, this 0.40 lb small base reloading body die selectively bumps the shoulder and reduces the case body of expanded .308 Winchester brass without altering neck concentricity.

Less suitable for: Handloaders running standard bolt-action rifles with standard-dimension SAAMI factory chambers, where a standard body die or standard full-length sizing die avoids over-working brass at the web; or reloaders who require decapping, neck sizing, and body sizing completed in a single press stroke, who are better served by an all-in-one full-length sizing die or small base full-length die.