gamestalker
member
These old Sierra's are the 55 gr. Spitzer, and 52 gr. BR HP's.
I checked Hodgdon and I can't find any data for these weight bullets that utilizes any of the powders I have on hand. The only data I did find is in my Speer #10 that utilizes IMR-4350, of which I have ample supply of.
So if IMR-4350 hasn't been reformulated, or scratched for some other pertinent reason, would it probably be ok to go with the 35+ yr. old Speer data, yes?
GS
I checked Hodgdon and I can't find any data for these weight bullets that utilizes any of the powders I have on hand. The only data I did find is in my Speer #10 that utilizes IMR-4350, of which I have ample supply of.
So if IMR-4350 hasn't been reformulated, or scratched for some other pertinent reason, would it probably be ok to go with the 35+ yr. old Speer data, yes?
GS