The RCBS .45 ACP Chamber/Case Length Gauge is an essential precision tool for handloaders working with .45 ACP ammunition. This gauge ensures accurate case length measurement and proper chamber fit for safe consistent reloading.RCBS .45 ACP Chamber/Case Length Gauge (Model 88273)Precision-machined for accurate case length verificationChamber gauge function for proper headspace checkingEssential tool for .45 ACP handloading safetyDurable construction for long-lasting usePerfect for serious reloaders who demand precision and safety in their .45 ACP ammunition preparation. Helps ensure consistent performance and proper case dimensions for optimal shooting results.