Pacific Tool & Gauge 117730 - 6.5-284 No Go Gauge
Getting down to the last thousandths of an inch when chambering has never been easier using these Go, No Go gauges. Made by Pacific Tool and Gauge from premium steel and hardened to last, they'll give you years of accurate, reliable service.
Note: Cannot be shipped outside of the United States.
Neck Diameter: No-Go(Max) 1.8151
Freebore Length: 284 Win Gauge