The only reduced loads I've come across, and I use them a lot, is with Hodgdon' H4895.
You use the maximum published load Hodgdon has for the cartridge and bullet weight and multiply by 0.6.
The result is the lowest recommended charge of H4895 for that combination.
It's explained on the Hodgdon website.
You use the maximum published load Hodgdon has for the cartridge and bullet weight and multiply by 0.6.
The result is the lowest recommended charge of H4895 for that combination.
It's explained on the Hodgdon website.