Thread: 35* long neck 7 SAUM based on WSM

Greetings 300LRH,
Both were unfired factory rounds. Unfortunately I didn't write them down so will remeasure tomorrow with the micrometer and report. In round numbers in the old measurements the WSM is about .550 inches and the SAUM .545 inches. The WSM is based on the .348 Win case and the SAUM on the 404 Jeffrey case. Will check tomorrow. This is the solid head of the case so should not change on firing, at least very little.
Grandpamac.