I was given an unopened "new" 1lb container of Winchester Ball Powder #748 and along with it were 2 boxes of 165 gr GR SST bullets. The problem is when I went to the Winchester load data site it shows two different loads for the 748.
A: 150 gr HDY RN .308 cal 44.0 gr
B: 170 gr HDY FP .308 cal 41.2 gr
I figure the amount is somewhere in between the two but have no idea where. To complicate matters I found out Hodgdon bought out the Winchester powder so I can't find the recommended load for 165 GR SST using the Winchester 748, nor can I find a book for the Winchester specific powder. I'm guessing Hodgdon pulled them.
Would anyone know or have the correct load info for 165 GR SST using the 748 powder?
It's for my AR10 and I'm trying to stay within the recommended load.
A: 150 gr HDY RN .308 cal 44.0 gr
B: 170 gr HDY FP .308 cal 41.2 gr
I figure the amount is somewhere in between the two but have no idea where. To complicate matters I found out Hodgdon bought out the Winchester powder so I can't find the recommended load for 165 GR SST using the Winchester 748, nor can I find a book for the Winchester specific powder. I'm guessing Hodgdon pulled them.
Would anyone know or have the correct load info for 165 GR SST using the 748 powder?
It's for my AR10 and I'm trying to stay within the recommended load.