When purchasing Sinclair International or any other brand from eGoods365.com store, you can be sure that (a) you are purchasing from US based company with the most responsive and friendly customer service; (b) an authentic, not a counterfeit and not a refurbished product.

The Sinclair Comparator is a useful tool for sorting bullets based on their base to measure length. If you plan to trim the bullet meplat, this is a crucial step. It's important to note that when sorting a lot of bullets, a digital caliper may be a better choice for some handloaders than a dial caliper.

If you're looking for an alternative tool for sorting bullets, you can try our Sinclair Bullet Sorting Stand (#59-2000) which comes with unique comparators.

To use the Sinclair Bullet Comparator, attach it to the blade of your caliper and insert the appropriate caliber-specific stainless steel inserts. These inserts are machined with a taper and straight section to accurately duplicate the chamber throat, eliminating any wobble. Using this tool, you can quickly and accurately measure the bullet's bearing surface.

The comparator inserts are available in 17 through 45 caliber and can be used in both Sinclair and older Stoney Point comparator bodies. However, note that these inserts are not intended for measuring rounds seated to magazine length or shorter. For this application, please consider using our Sinclair Bullet Comparators (#09-600 and #09-700).