454 casull and leading

[prestonjr]

Shooting a 255 grain lswc the alloy is a 6 & 2. I am loading it with 28 grains of Imr 4227 a little much but anyway my question is what is the minimum load you can drop the 4227 without causing problems, knowing that 4227 is a slow burner. Have a supply of the powder and supply of the lswc any suggestions is helpful

 

[Lj1941]

The Hodgdon website has data for the 454 with 4227 powder.It has data for lead bullets. You should be able to get the suggested minimum for a bullet close to what you are using.