I received an advertisement today from Power Valley. A new to me shotgun powder called “Perfect Pattern”. I don’t know about the pressures but the velocity’s look promising.
Mike Koneski
02-28-2024, 02:16 PM
Go onto the Hodgdon site. They have a cubic crap-ton of 12g load data. There are some loads that you might be able to use in your vintage doubles in 7/8 and 1 oz.