I am getting a Bushmaster flattop from a friend and was wondering if anyone had messed with H380 as a powder. Same ballpark as Varget but in looking at various load data sites I don't see any data anywhere. I have an 8lb jug of H380 and was hoping to use it in the 223 as well as the 22-250. So, has anyone used H380 before or is there a reason not to other than there are better powders out there which I already know?
