Greetings @akaroa1,
The pressure tested data for the .303 from ADI and especially Hodgdons are useful as well but neither lists a 165 grain projectile. They do list the pressures. I also have some old pressure tested data from Dupont for the .30-40 but it does not include the 165 grain projectile. This is from the mid 1970's and I found it on Load data.com. It doesn't line up with other data though and shows really light loads for IMR4895, a relatively new powder at the time. I should get onto some chronographing over the next couple of weeks so will report more on velocities then. Are there any powders you are interested in?
Regards Grandpamac.
PS. Will have a hunt for 748 and 760 data as well.
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