K&M - Gage Pin Blocks Size:30 cal You can now easily adjust

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

With a large 69mrad circle

Before sizing operations to find the optimal headspace for your firearm

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

K&M - Gage Pin Blocks Size:30 cal You can now easily adjustGage 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