Top takeaways

  1. The Modular Headspace Comparator Bullet Inserts require a separately purchased Modular Headspace Comparator Body.
  2. These bullet inserts utilize a 3.0 degree "lead angle" for precise contact with the bullet's ogive, mirroring the barrel's interaction.
  3. Made from 17-4 Stainless Steel, the 6mm insert starts at .266" and tapers to .256" diameter, ensuring accurate measurements for consistency.

Attributes

Caliber: 243/6 mm (.243) Delivery weight: 0.036kg

Item details

Made in USA