Description Modular Headspace / Bullet Comparator Bodies We offer Dial Caliper Bodies for your Modular Headspace Comparator assembly. You can now choose from 2 mounting configurations: “Centered” for normal use, and “Offset” for use with Hornady® COAL Tools. We provide two configurations: Long: This configuration, the longest of the two, works with loaded ammunition up to 338 Lapua Magnum with solid turned bullets. Short: This configuration, the shortest body of the two, offers a more compact option when you want to dedicate a body for measuring fired brass or bullets only. We manufacture these bodies from 6061 Aluminum. They clamp onto your dial / digital calipers, allowing you to change the Headspace and Bullet inserts quickly without using any tools. Both Standard and Short Modular Headspace Comparator Bodies feature two clamping configurations when mounting to your dial calipers. Configuration “C”: Centered When you mount the 10/32 Thumb Screw on the bottom side with a “C”, it centers the Modular Headspace Comparator Body on the dial calipers. This configuration suits all normal uses. Configuration “O”: Offset When you mount the 10/32 Thumb Screw on the bottom side with an “O”, it offsets the Modular Headspace Comparator Body on the dial calipers. When using the Hornady COAL measuring tools, you must offset the Modular Headspace Comparator body on the dial calipers to properly align the Hornady tool with the Modular Headspace Comparator assembly. (Please note that anodizing can cause differences in color.)
