Sinclair Hex Style Bullet Comparators
April 27, 2011
Since the hex-style comparators don't attach to your caliper, it frees up that tool for other uses.
The holes in the hex comparator are cut with throating reamers to accurately duplicate the actual throat of a rifle, enabling precise measurement of major bullet diameter to case head. Stainless steel. Two models cover diameters up to .338. $19. www.SinclairIntl.com