PRECISION MIC 6.5mm PRC

Precision Mic Features A few twists of the Precision Mic and you'll know your chamber headspace and bullet seating depth to 0.001 of an inch. The Precision Mic measures from the datum point on the case shoulder to the base giving you spot-on SAAMI tolerance readings. An indispensable tool for safe accurate loads that extend the life of your rifle brass. Precision Mic Specifications Determines chamber headspace and bullet seating depth to 0.001-inch Measures from the datum point on the ca