RCBS 99243 Shell Holder #43 - .223/.243/.270/7mm/.300/.325 WSM

The RCBS 99243 Shell Holder #43 provides secure case positioning for popular Winchester Short Magnum and standard cartridges during reloading operations. This precision-machined shell holder accommodates .223 Remington, .243 Winchester, .25 WSSM, .270 WSM, 7mm WSM, .300 WSM, and .325 WSM cartridges with consistent grip and release.

What Makes This Different

RCBS shell holders feature hardened steel construction with precise internal dimensions that match SAAMI specifications for each cartridge family. The #43 designation indicates specific rim diameter compatibility, ensuring proper case extraction without deformation. Unlike universal holders that compromise on fit, this dedicated shell holder maintains consistent case alignment throughout the sizing and seating process.

Key Features

• Hardened steel construction resists wear from repeated cycling
• SAAMI-spec internal dimensions for .473" bolt face cartridges
• Compatible with all RCBS single-stage and progressive presses
• Knurled exterior provides secure grip during installation and removal
• Precision-machined case rim channel prevents extraction issues
• Supports seven popular cartridge types in one holder
• Heat-treated steel maintains dimensional stability over time

Reloaders working with Winchester Short Magnum cartridges benefit from the holder's ability to handle both standard and magnum case lengths without adjustment. The consistent case positioning reduces runout and improves concentricity in finished ammunition. Competition shooters appreciate the reliable extraction that prevents stuck cases during high-volume loading sessions.

Technical Specs

• Material: Heat-treated alloy steel
• Compatibility: .223 Rem, .243 Win, .25 WSSM, .270 WSM, 7mm WSM, .300 WSM, .325 WSM
• Rim diameter specification: .473 inches
• Thread pitch: Standard RCBS press mounting
• Finish: Natural steel with knurled grip surface
• Manufacturer: RCBS (Rock Chucker Bullet Swager)
• Country of origin: United States

The RCBS Shell Holder #43 eliminates the guesswork in cartridge compatibility while delivering the precision that serious reloaders demand. This single holder covers multiple popular cartridges, making it an efficient addition to any reloading setup focused on modern rifle cartridges.