Sinclair Bullet Comparator Insert 408 Calibre (0.408") Stainless Steel Cartridge_348 Winchester 375 H&H Magnum and 40-60

375 H&H Magnum and 40-60 Sharps

The bag measures approximately 4" W x 7" L x 1" H

300 Norma Magnum case

reloadable brass cases

7mm Arisaka

Sinclair Bullet Comparator Insert 408 Calibre (0.408") Stainless Steel Cartridge_348 Winchester 375 H&H Magnum and 40-60The Sinclair Bullet Comparator inserts are meant to be used with the Sinclair Bullet Comparator and Bump Gage Body. These inserts are stainless steel and machined with a taper and a short straight section to more accurately duplicate the chamber throat. This eliminates the wobble experienced with many comparators which have standard drilled holes. This design allows you to quickly and accurately measure and compare bullet ogive to base as well as