MEC Spindex Star Crimp Kit - 20 ga

The MEC Spindex Star Crimp Kit for 20 gauge is a precision-engineered reloading tool designed for handloaders who prioritize consistency and accuracy in shotshell preparation. Built by Mayville Engineering Company (MEC), a manufacturer with decades of expertise in reloading equipment, this crimp kit delivers repeatable results through its automatic rotating design that realigns precisely to the original crimp geometry each cycle.

For reloaders seeking to reduce shot deformation and pressure variation, this kit is a cost-effective upgrade that eliminates manual adjustment between rounds. The Spindex Star crimp system works by indexing the crimp die to match the previous crimp's profile automatically, ensuring uniform wad seating and consistent pellet compression across every round loaded. This is particularly valuable in 20 gauge shotshell reloading, where tighter tolerances and lower powder charges demand precision to achieve reliable ignition and patterning.

The compact design—now verified to weigh 0.5 lbs—integrates easily into existing MEC progressive or single-stage press setups without requiring major reconfiguration. Shotshell reloaders who shoot trap, skeet, or hunting loads benefit most from this crimp kit, particularly those loading 20 gauge target or field ammunition where batch consistency matters for performance. Whether you're working with light loads or standard loads, the MEC Spindex Star Crimp Kit ensures reliable performance.