Made in the U.S.
Shows chamber headspace and bullet-seating depth
Gives you spot-on SAAMI tolerance readings
Available for many popular calibers
The RCBS Precision Mic Gauge shows you your chamber headspace and bullet-seating depth to 0.001 of an inch with just a few twists. It measures from the datum point on the case's shoulders to the base, giving you spot-on SAAMI tolerance readings and is available for many popular calibers. It's indispensable for safe, accurate loads. All RCBS reloading equipment is made in the U.S. and 100% reliable.