From the RCBS Load program. To the base of the neck, using the middle case wall taper given.
7mm rem mag 74.6gr
7wsm 76.3gr
300wsm 74.8gr
300 win mag 82.1gr
30/06 61.0gr
300 RUM 104.4gr
308 win 49.9gr
Others you didn't mention
30-338 Win 76.0gr
300 SAUM 67.6gr
7 RUM 103.0gr