Sinclair Comparator Insert .22 #749-000-928
The 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 duplicate the chamber throat more accurately. This eliminates the wobble experienced with many comparators which have standard drilled holes. Our design allows you to measure and compare bullet ogive-to-base as well as loaded round ogive-to-cartridge-base measurements quickly and accurately. This measurement gives more consistent results than measuring overall lengths since the meplat (the open tip of the bullet) can vary by several thousandths of an inch from bullet to bullet.
The 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 duplicate the chamber throat more accurately. This eliminates the wobble experienced with many comparators which have standard drilled holes. Our design allows you to measure and compare bullet ogive-to-base as well as loaded round ogive-to-cartridge-base measurements quickly and accurately. This measurement gives more consistent results than measuring overall lengths since the meplat (the open tip of the bullet) can vary by several thousandths of an inch from bullet to bullet.
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