FEATURES
-Easily attaches to the blade of your caliper with a thumbscrew
-Uses interchangeable inserts to measure from the bullet ogive
-Also used to check uniformity of bullets from base to ogive
Includes 6 bullet inserts:
-.224" (5.56mm)
-.243 (6mm)
-.257
-.277
-.284 (7mm)
-.308 (7.62 & 8mm)