Get unparalleled accuracy and dependability with Lyman maximum cartridge gauges, designed to ensure that every round of your pistol ammunition is up to the highest standards. These gauges check all the critical dimensions, including case length, diameter, and overall cartridge length, guaranteeing that your reloads are functioning flawlessly. For top competitive shooters, using these gauges is essential to achieving 100% reliability in their ammo, especially when every round counts in high-stakes competition. Trust Lyman's precision craftsmanship to give you the confidence that your ammunition will perform flawlessly during your most important matches. Single-piece fixed cylinder gauge Verifies the dimensions of the case, including its length, diameter, and the overall length of the loaded cartridge