Measuring cartridge lengths across the bullets tips are not a reliable method for measuring your loaded rounds. It's common for variations of up to .025" to exist from one round to the next. Hornady's bullet comparator solves that problem by measuring rounds from a reliable surface on the bullet, the ogive, precise measurements of your rounds.

Hornady's Bullet Comparator attaches to the blade of your calliper with a thumbscrew and uses interchangeable insert bushings to measure from the bullet ogive. These bushings are available in fourteen sizes from .17 calibre to .45 calibre.

The Basic compartator set includes the following 7 bushings

• 224" (5.56mm)
• .243" (6mm)
• .257"
• .264" (6.5mm)
• .277"
• .284" (7mm)
• .308" (7.62 & 8mm)

Bullet insert number and corresponding bullet calibre: