RCBS Precision Micrometer .260 REM

The RCBS Precision Micrometer .260 REM is a specialized reloading instrument designed for precision shooters and competitive reloaders who demand accuracy measured in thousandths of an inch. Built by RCBS—a leader in reloading equipment since 1956—this micrometer serves a critical function: measuring chamber headspace and bullet seating depth to ensure ammunition meets SAAMI specifications. Whether you're developing match-grade loads for long-range competition or ensuring safe, consistent performance in a custom rifle, this precision tool is essential for any serious handloader's bench.

The Precision Micrometer measures from the datum point on the case shoulder to the base, providing spot-on headspace and seating depth readings with 0.001-inch resolution. This datum-reference method eliminates guesswork and accounts for case-to-case variations that can affect cartridge concentricity and chamber fit. The micrometer's precision-machined construction and calibrated scale allow reloaders to verify that each round falls within strict SAAMI tolerance windows, directly improving safety, reliability, and shot-to-shot consistency. The instrument's compact design—weighing just 0.69 lbs and measuring 4.5 × 5.95 × 1.75 inches—makes it convenient for bench use without sacrificing measurement stability.

Reloaders working with the .260 Remington cartridge—popular in precision rifle competitions and long-range hunting—will find this micrometer indispensable for quality control. It is compatible with any reloading setup where .260 REM ammunition is produced, from single-stage presses to progressive operations. Serious handloaders, competition shooters, and those seeking repeatable accuracy will recognize this tool's value in establishing baseline measurements and catching out-of-spec rounds before they reach the firing line. Few tools deliver such direct impact on ammunition quality and shooter confidence.