RCBS 87501 Die Lock Ring Assembly 7/8-14 Thread Reloading Dies

The RCBS 87501 Die Lock Ring Assembly ensures consistent die positioning and eliminates the frustration of dies backing out during extended reloading sessions. This precision-engineered assembly maintains exact headspace settings across hundreds of rounds, delivering the reliability serious reloaders demand.

What Makes This Different

Unlike standard lock rings that rely on basic set screws, this assembly features a split-ring design that distributes clamping pressure evenly around the entire die circumference. The hardened steel construction resists deformation under high torque loads, while the knurled exterior provides superior grip for hand-tightening. This system eliminates the common problem of dies loosening during operation, which can cause dangerous pressure variations.

Key Features

• Split-ring design distributes clamping force evenly for secure die retention
• 7/8-14 thread pitch fits all standard reloading presses and die sets
• Hardened steel construction withstands repeated installation cycles
• Knurled exterior surface enables hand-tightening without tools
• Precision machining ensures consistent thread engagement
• Compatible with RCBS, Hornady, Redding, and other major die manufacturers
• Eliminates die movement that causes headspace variations

This lock ring assembly performs consistently across all reloading scenarios, from high-volume competition prep to precision hunting loads. The secure clamping action maintains die position through thousands of sizing operations without requiring constant readjustment. Reloaders working with temperature-sensitive powders particularly benefit from the consistent chamber dimensions this assembly maintains.

Technical Specs

• Thread specification: 7/8-14 TPI (threads per inch)
• Material: Heat-treated alloy steel
• Finish: Corrosion-resistant coating
• Compatible with: Standard reloading press threads
• Installation: Hand-tighten, no special tools required
• Manufacturer: RCBS (Rock Chucker Bullet Swage)
• Country of origin: United States

This lock ring assembly represents essential equipment for any reloader seeking consistent ammunition quality. The robust construction and proven design eliminate a common source of reloading variables, making it a worthwhile upgrade for both novice and experienced handloaders.