Sinclair - Bump Gauge Insert Micro3X hand polished and heat treated

hand polished and heat treated to withstand a file bearing against the top surface without causing damage to the die

Concentricity is enhanced by the ability of the resizing bushing to self-centre on the case neck

Unique Federal® priming mix for consistent ignition

which center only on the pilot

Sinclair - Bump Gauge Insert Micro3X hand polished and heat treatedSinclair Bump Gage Inserts are used to measure the amount of case shoulder bump when setting up full length sizing dies. Rather than measuring to the datum line, these gages indicate off of the shoulder of the case to get a better, more easily assessable measurement of how much you are actually sizing your cases They can install in either of the Sinclair comparator body (XL) or Hornady Body and are machined to fit particular shoulder angles of