The Hornady Lock-N-Load Headspace Gauge is perfect for measuring from the case-head to the datum line on the case shoulder to allow proper brass resizing for a precise fit with the rifle chamber. Bushing fit the comparator body and attach to calipers with a thumb screw. Can be used with bottleneck cases from 17 caliber through large belted magnums.
Fits: 6mm Remington, 257 Roberts, 25-06 Remington, 7x57mm Mauser, 280 Remington, 30-30 Winchester, 30-06 Springfield, 7.62x39mm Russian, 303 British
- This is for the bushing only, the Bullet Comparator and Calipers that are required for the set to work are (Sold Separately)
- All bushings are interchangeable with the Comparator