The insert is part of the Modular Headspace Comparator system and requires the separate purchase of the Modular Headspace Comparator Body.
It is designed for improved accuracy in cartridge headspace and bullet measurements, compatible with cartridges up to 338 Lapua Magnum.
Made from 17-4 Stainless Steel, the insert offers enhanced durability and corrosion resistance, representing the highest quality in headspace and bullet measuring tools.