Bushing only. Works with Headspace Gauge, sold separately.
Determining the proper bushing diameter: If you add the neck diameter and the shoulder diameter and divide that number by two, use the bushing closest to that number.
.350"
22 PPC
22-250 Remington
6mm PPC
6mm Bench Rest Remington
250-3000 Savage
7mm Bench Rest Remington
300 Blackout
6.5 Grendel
6mm ARC