K&M - Gage Pin Blocks Size:30 cal Based on re-engineered digital technology

Based on re-engineered digital technology that overcomes problems commonly experienced by older designs

Bulk missile detection

You can now easily adjust the shoulder bump to customize cases to your specific chamber

Before sizing operations to find the optimal headspace for your firearm

With a large 69mrad circle

K&M - Gage Pin Blocks Size:30 cal Based on re-engineered digital technologyGage Pin Block . 17 cal through . 50 cal. custom hole fit per caliber (7mm shown). Gage pins sold separately. Checking your Case Neck with Gage Pins: After expanding use the corresponding gage pins to confirm the neck sized as expected. The feel you are looking for is a light drag on the gage pin. When sized properly the gage pin will act as a piston as you push the pin into the case neck while holding your finger or thumb over the primer pocket. You