L.E. Wilson Case Length Headspace Gauge, 6MM Dasher Bullet Style_Boat Tail Spire Point (BTSP) 308 Diameter (Inches) 0

308 Diameter (Inches) 0

148 Package Quantity 100/Box

7 x 57 Rimmed

480 Sectional Density 0

7mm Merrill

L.E. Wilson Case Length Headspace Gauge, 6MM Dasher Bullet Style_Boat Tail Spire Point (BTSP) 308 Diameter (Inches) 0Inherent with reloading is the potential to oversize your bottleneck rifle brass. And the most important use of a cartridge case gauge is for setting up 78" 14 press type full length resizing dies. Headspace of fired rifle cases can quickly and accurately be measured using this tool with a caliper. This one piece gauge will check overall length to indicate a need for trimming and datum to head length to assure correct headspace to prevent over sizing.