NorthBorder
Member
I have been loading for a Henry 45Colt with a 255 gr hard cast and 8.5 gr Unique. I have a new Winchester 73 in 45Colt and am concerned that 8.5 gr may be too much for that action. I am pretty sure I am close to the SAAMI max of 14000 psi but I can't find it on the Alliant load data. Does anyone have any 1st hand knowledge or do they do similar loads? I am off to the range and will take my Henry and chrono that load.
Thanks in advance
Thanks in advance