I have often read and heard that load data for the venerable 30-06 and the 7.62x54R are essentially interchangeable. Lyman 49 is full of great cast data for various bullet weights and powder I have on hand ( imr 3031 and unique) and some surprising velocities for lead bullets. the 7.62x54R data has neither listed. I am hoping I can exchange the data. Is this true info ( 1-1 data exchange) or a wives tale?
Thanks,
Jason