Description
The MEC 600 Jr Mark V .410 Bore Loader is a single-stage shotshell reloading press designed for precision handloading applications involving 2½-inch .410 bore shells. Built on MEC’s long-established 600 Jr platform, this loader provides controlled, step-by-step operation that allows reloaders to oversee each stage of the shotshell ammunition assembly process.
Configured from the factory for 2½-inch .410 bore hulls, the press performs essential operations including resizing, depriming, priming, powder charging, wad seating, shot drop, and final crimping. Each step is performed sequentially, allowing the operator to maintain consistent component alignment and monitor the reloading workflow closely. The heavy-duty steel and aluminum construction supports stable bench operation and long service life during repeated reloading sessions.
Quick Highlights:
• Product Type: Single-Stage Shotshell Reloading Press
• Caliber Compatibility: .410 Bore
• Bullet Weight: Not Applicable
• Material: Steel / Aluminum Components
• Tip Type / Design: Single-Stage Shotshell Reloading System
• Included Components: 600 Jr Mark V Loader Assembly
• Ideal For: Precision Reloading / Shotshell Ammunition Assembly
Use Cases & Applications:
• Precision handloading
• Bench-mounted reloading setups
• .410 bore shotshell ammunition assembly
• Skeet and sporting clays ammunition preparation
• Small game hunting shotshell preparation
Technical Details:
Manufacturer: MEC (Mayville Engineering Company)
Model: 600 Jr Mark V
Product Type: Single-Stage Shotshell Reloading Press
Caliber Compatibility: .410 Bore
Bullet Weight: Not Applicable
Material: Steel / Aluminum Components
Finish: Factory Finish
Included Components: 600 Jr Mark V Loader Assembly
Engineered for serious handloading workflows where consistency, efficiency, and repeatable performance matter most.





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