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—weighing just 0.25 pounds—integrates easily into existing MEC progressive or single-stage press setups without requiring major reconfiguration. All MEC products are manufactured in the United States using quality materials engineered for years of dependable service.

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 7/8-ounce loads or standard 1-ounce payloads, the automatic realignment reduces the learning curve and minimizes the flyers caused by inconsistent crimp closure. This kit is an essential upgrade for serious 20 gauge handloaders who want to maximize case life and improve ballistic uniformity without switching to a different reloading platform.