Sinclair Bullet Comparator Insert 25 Calibre (0.257") Stainless Steel 243 Winchester Improved 40° An example is the 38

An example is the 38 Super and the 9mm family of cartridges

Exterior: 48

It contains ball bearings to ensure years of smooth rotation and function

366 Bullet Weight 250gr Bullet Style Tipped TSX Boat Tail (TTSX) Ballistic Coefficient 0

an extra press is always useful for decapping

Sinclair Bullet Comparator Insert 25 Calibre (0.257") Stainless Steel 243 Winchester Improved 40° An example is the 38The Sinclair Bullet Comparator inserts are meant to be used with the Sinclair Bullet Comparator and Bump Gauge Body or Hornady Comparator 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