Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

This Sinclair Comparator is an excellent tool to use to sort bullets by base to give length. This is a valuable step if you are considering trimming the bullet meplat. NOTE: When sorting a lot of bullets, a digital caliper is sometimes a better choice for some handloaders than a dial caliper (digital calipers listed below). An alternative tool to use for sorting bullets is our Sinclair Bullet Sorting Stand (#59-2000) which uses its own unique comparators.

Our Sinclair Bullet Comparator attaches to the blade of your caliper and uses inserts for each specific caliber. The 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. Our design allows you to quickly and accurately measure the bullet's bearing surface of the bullet. Comparator inserts are available in 17 thru 45 caliber, and they can be used in both the Sinclair and older Stoney Point comparator bodies. These inserts are not intended to measure rounds seated to magazine length or shorter. For this application please see our Sinclair Bullet Comparators (#09-600 and #09-700). 


Big Book Catalog, Issue:68, Page:531
Big Book Catalog, Issue:68, Page:532
Sinclair, Issue:5A, Page:027
Sinclair, Issue:5A, Page:034

Filtered Matches

SINCLAIR COMPARATOR INSERT/338 CAL
749-000-926WB
Sinclair Comparator Insert, 338 cal
749000926Sinclair Comparator Insert, 338 cal

Mfr Part: 090338

$7.99

In Stock

Caliber: 338 Caliber (.338)

Other Matches

SINCLAIR COMPARATOR/BUMP GAGE BODY
749-002-552WB
Sinclair Comparator/Bump Gage Body
749002552Sinclair Comparator/Bump Gage Body

Mfr Part: 091000

$15.99

In Stock

Caliber: Universal

XL COMPARATOR/BUMP GAGE BODY
749-011-959WB
XL Comparator/Bump Gage Body
749011959XL Comparator/Bump Gage Body

$15.99

Out of Stock
SINCLAIR COMPARATOR INSERT/17 CAL
749-000-924WB
Sinclair Comparator Insert, 17 cal
749000924Sinclair Comparator Insert, 17 cal

Mfr Part: 090172

$7.99

In Stock

Caliber: 17 Caliber (.172)

SINCLAIR COMPARATOR INSERT/20 CAL
749-000-927WB
Sinclair Comparator Insert, 20 cal
749000927Sinclair Comparator Insert, 20 cal

Mfr Part: 090204

$7.99

In Stock

Caliber: 20 Caliber (.204)

SINCLAIR COMPARATOR INSERT/22 CAL
749-000-928WB
Sinclair Comparator Insert, 22 cal
749000928Sinclair Comparator Insert, 22 cal

Mfr Part: 090224

$7.99

In Stock

Caliber: 22 Caliber (.223-.224)

SINCLAIR COMPARATOR INSERT/6 MM
749-000-929WB
Sinclair Comparator Insert, 6 mm
749000929Sinclair Comparator Insert, 6 mm

Mfr Part: 090243

$7.99

Out of Stock View Alternatives

Caliber: 243/6 mm (.243)

SINCLAIR COMPARATOR INSERT/25 CAL
749-000-922WB
Sinclair Comparator Insert, 25 cal
749000922Sinclair Comparator Insert, 25 cal

Mfr Part: 090257

$7.99

In Stock

Caliber: 25 Caliber (.257)

SINCLAIR COMPARATOR INSERT/6.5 MM
749-000-930WB
Sinclair Comparator Insert, 6.5 mm
749000930Sinclair Comparator Insert, 6.5 mm

Mfr Part: 090264

$7.99

Out of Stock View Alternatives

Caliber: 264/6.5 mm (.264)

SINCLAIR COMPARATOR INSERT/270 CAL
749-000-923WB
Sinclair Comparator Insert, 277 cal
749000923Sinclair Comparator Insert, 277 cal

Mfr Part: 090277

$7.99

In Stock

Caliber: 270/6.8 mm (.277)

SINCLAIR COMPARATOR INSERT/7 MM
749-000-925WB
Sinclair Comparator Insert, 7 mm
749000925Sinclair Comparator Insert, 7 mm

Mfr Part: 090284

$7.99

In Stock

Caliber: 284/7 mm (.284)

SINCLAIR COMPARATOR INSERT/30 CAL
749-000-931WB
Sinclair Comparator Insert, 30 cal
749000931Sinclair Comparator Insert, 30 cal

Mfr Part: 090308

$7.99

In Stock

Caliber: 30 Caliber (.308)

SINCLAIR COMPARATOR INSERT/8MM
749-000-919WB
Sinclair Comparator Insert, 8mm
749000919Sinclair Comparator Insert, 8mm

Mfr Part: 090323

$7.99

In Stock

Caliber: 8 mm (.323)

SINCLAIR COMPARATOR INSERT/35 CAL
749-000-920WB
Sinclair Comparator Insert, 35 cal
749000920Sinclair Comparator Insert, 35 cal

Mfr Part: 090358

$7.99

In Stock

Caliber: 35 Caliber (.358)

SINCLAIR COMPARATOR INSERT/9.3MM
749-011-512WB
Sinclair Comparator Insert, 9.3mm
749011512Sinclair Comparator Insert, 9.3mm

Mfr Part: 090366

$7.99

In Stock

Caliber: 9.3 mm (.366)

SINCLAIR COMPARATOR INSERT/375 CAL
749-000-917WB
Sinclair Comparator Insert, 375 cal
749000917Sinclair Comparator Insert, 375 cal

Mfr Part: 090375

$7.99

In Stock

Caliber: 375 Caliber (.375)

SINCLAIR COMPARATOR INSERT/408 CAL
749-011-510WB
Sinclair Comparator Insert, 408 cal
749011510Sinclair Comparator Insert, 408 cal

Mfr Part: 090408

$7.99

Out of Stock

Caliber: 408 Cheytec (.408)

SINCLAIR COMPARATOR INSERT/416 CAL
749-000-918WB
Sinclair Comparator Insert, 416 cal
749000918Sinclair Comparator Insert, 416 cal

Mfr Part: 090416

$7.99

In Stock

Caliber: 416 Caliber (.416)

SINCLAIR COMPARATOR INSERT/404 JEFFREY
749-009-372WB
Comparator Insert .404 Jeffrey
749009372Comparator Insert .404 Jeffrey

Mfr Part: 090422

$7.99

In Stock

Caliber: 404 Jeffery (.422-.423)

SINCLAIR COMPARATOR INSERT/44 CAL
749-011-511WB
Sinclair Comparator Insert, 44 cal
749011511Sinclair Comparator Insert, 44 cal

Mfr Part: 090429

$7.99

In Stock

Caliber: 44 Caliber (.429-.430)

SINCLAIR COMPARATOR INSERT/.458 CAL
749-000-921WB
Sinclair Comparator Insert, .458 Cal
749000921Sinclair Comparator Insert, .458 Cal

Mfr Part: 090458

$7.99

In Stock

Caliber: 45 Caliber (.451-.454)

SINCLAIR INSERT STYLE BULLET COMPARATOR