The Modular Headspace Comparator Insert is designed for the .300 Winchester Magnum and requires a separately purchased Modular Headspace Comparator Body.
It features a new Modular Design, allowing use with cartridges up to .338 Lapua Magnum, and is made from 17-4 Stainless Steel for durability and corrosion resistance.
These inserts are part of the most accurate cartridge headspace and bullet measuring tools available, according to SHORT ACTION CUSTOMS, LLC.
Attributes
Cartridge:
300 Winchester Magnum
Delivery weight: 0.032kg