I just recently, and on previous occasions have purchased vintage Sierra and Speer bullets, and CCI primers from a small old LGS here. At present I'm loading 22-250 with some Sierra bullets that are from the 60's. Some of the boxes don't even have a part number on them, just a description of the bullet. The bad part, and probably the reason why the stuff is still on their shelves, is that they are selling this stuff at retail prices that are inflated way above the current market.
But those you have are indeed cool. If the powder still smells good, use it, but first check to see if anything has changed with the formulation, many have. If it has, maybe use starting data from that time frame. I've used IMR-4350 that was from the 50's, no problems.
As far as the bullets, as long as they look normal and don't have any corrosion, use them. I found a few, like 2 or 3 in the boxes I have that were badly corroded, I just ate around the bad one's.
Primers are very likely good also, and if they don't appear to have been contaminated, which might be hard to see, I would use them in a heart beat. Maybe prime a couple cases, primer only, then discharge them from a firearm, if they go boom, they're good.
Don't know anything about the trimmer.
GS
