Originally Posted by Joaquin B
A friend who passed away a few years ago gave me 2 lbs. of IMR7828 powder. It's been sitting in storage and I'd like to use it. Is there anyone out there using this powder with good results? If so what caliber and bullet weight? Since this is a very slow burning powder, what is the recommended primer? Any and all responsed will be greatly appreciated.
I've been using the SSC version (IMR claims same burn rate) lately in a couple chamberings, both with CCI standard LR primers. One being the 300 WSM
with 230 grain Berger Hybrids at 2700 fps, and the 243 Win with 100 grain Hornady BTSP bullets at 3025 fps. You're right, it is a slow burner and it will produce good velocity for the heavy for caliber bullets and it's generally regarded as temp stable. Both of the loads mentioned above have produced excellent accuracy potential. I certainly haven't noticed anything wierd about it.