K&M - Custom Gauge Pin Size:0.2015 Chamfers the inside case mouth

Chamfers the inside case mouth to an angle of 14°

Delta Stryker 3

The Mantis X2 is the most powerful training aid for dry fire only practice

allowing gas to blow rearward like rocket exhaust

K&M - Custom Gauge Pin Size:0.2015 Chamfers the inside case mouthMeasures neck inside diameter 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 can actually feel the air compress inside the case. Quite often the brass can be