The Sinclair SS Bump Gauge Insert is a stainless steel replacement insert designed to help you measure and control cartridge neck bump using compatible bump gauge systems for 30 caliber family chambers including 30 Fireball, PPC, BR, and 204 Ruger.
Key Features
Stainless steel construction for corrosion resistance and consistent gauging
Replacement insert for Sinclair bump gauge setups supporting 30 Fireball, PPC, BR, and 204 Ruger
Helps you standardize neck bump measurements for repeatable case preparation
Use this insert to keep your bump gauge measuring consistently so your reloads can be tuned with confidence.
