Sinclair #30A 30° Bump Gauge Insert, (.25- 338 Calibre) 25 WSSM, 6.5 Creedmoor Bullet Calibre_375 Calibre Accepts 8-32 threaded cleaning accessories

Accepts 8-32 threaded cleaning accessories

Felt cleaning pellets Improve the scrubbing power of J-B Bore Cleaner

Taper Crimp Adjust Screw

any subsequent conditioning or bullet seating operation will not be accurate

Sierra has given shooters around the world MatchKing® quality in this calibre

Sinclair #30A 30° Bump Gauge Insert, (.25- 338 Calibre) 25 WSSM, 6.5 Creedmoor Bullet Calibre_375 Calibre Accepts 8-32 threaded cleaning accessoriesSinclair Bump Gage Inserts are used to measure the amount of shoulder bump when setting up full length sizing dies. These Bump Gauges install in either of the Sinclair or Hornady comparator bodies and are machined to fit particular shoulder angles of cartridges. Rather than measuring to the datum line, these gauges indicate off of the shoulder of the case to get a better, more easily assessable measurement of how much you are actually sizing your