Hornady A6MMC Lock-N-Load Modified Case 6mm Creedmoor Brass

The Hornady A6MMC Lock-N-Load Modified Case transforms 6mm Creedmoor cartridge overall length measurements from guesswork into precision. This modified brass case eliminates seating depth variables by providing a consistent reference point for bullet seating measurements with Hornady's Lock-N-Load Overall Length Gauge.

What Makes This Different

Unlike standard factory brass that varies in dimensions, this modified case features precisely drilled threading that accepts the Lock-N-Load gauge's threaded rod system. The modification removes measurement inconsistencies caused by case mouth variations and primer pocket differences. Standard measuring methods can produce variations up to 0.010 inches, while this system delivers repeatable measurements within 0.001 inches.

Key Features

• Precision-threaded case mouth accepts Lock-N-Load gauge rod for exact measurements
• Fire-formed brass construction maintains chamber dimensions and headspace accuracy
• 6mm Creedmoor chamber specification ensures proper fit in match and hunting rifles
• Eliminates bullet seating guesswork for consistent cartridge overall length
• Compatible with all Hornady Lock-N-Load Overall Length Gauge systems
• Reusable design withstands repeated gauge insertions and measurements
• Quality brass construction resists deformation during measurement process

Handloaders achieve consistent accuracy by establishing optimal bullet seating depth for their specific rifle chamber. Competition shooters use this system to find the precise jump distance that delivers sub-MOA groups. Hunters benefit from consistent ammunition performance across different bullet weights and styles. The modified case works with all 6mm Creedmoor bullets from 95-grain varmint projectiles to 147-grain match bullets.

Technical Specs

• Caliber: 6mm Creedmoor (.243 inch bore diameter)
• Case length: 1.920 inches nominal
• Material: High-quality brass construction
• Threading: Precision-machined to accept Lock-N-Load gauge rod
• Compatibility: All 6mm Creedmoor chamber specifications
• Country of origin: United States
• Manufacturer: Hornady Manufacturing Company

Precision handloading demands accurate measurements, and this modified case delivers the consistency serious shooters require. The investment in proper measuring tools pays dividends in improved accuracy and reduced load development time.