Art...... Get today's loadings from the info below:
Please download the following for MIL SPEC info on military cartridges. Note they state "psi" for pressure but they used copper units of pressure; they should be "cup" to be correct:
Then download SAAMI's document on cartridge specs. Starting at page 13, the cartridge pressure and velocity specs are listed. First for cup then later for psi numbers; very interesting indeed:
The info in the SAAMI document has excellent info on both pressure measuring types, techiques and specifications.
Of course, the .30-06 is "stouter" than the .308. It shoots bullets out faster given equal barrel and pressure numbers.