Bought a ton of old reloading stuff off a guy this week.
He was just piling it all in boxes saying take it all.
With it I got 1# of IMR 4831 and about 2000 Winchester small pistol primers. This was all from the late 80's he said and kept in a spare bedroom with heat and AC.
The powder was sealed in a metal can and still has a nice ether smell. The primers were always kept dry and look nice and shiny still in their original boxes.

Should I not use them at all or just load up a few rounds and see each do?