K&M - Custom Gauge Pin Size:0.2215 The steel core is coated

The steel core is coated with a high performance

Nitrogen filling - Yes

This bullet has set new records and won national championships in such diverse competitions as National Match High Power and Silhouette

proven by the countless long range records set using it

Solid steel

K&M - Custom Gauge Pin Size:0.2215 The steel core is coatedMeasures 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