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Greetings,
.270 WSM base measured 13.93 mm (0.5485 inches) and the 7 mm SAUM base measured 13.85 mm (0.5455 inches) for a difference of 0.08 mm (0.003 inches). There is a way that you could form a...

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...

Just checked. Measured base size of a .270 WSM and 7 mm SAUM. The WSM is a little larger, about 0.1 mm or so. The SAUM works pretty well. Can't see you would gain much. The 5 degree increase in...

I think you may find the WSM's have a slightly larger base size than the SAUM's. They were developed from two different cases in spite of what is written about them.
Grandpamac.