I was digging through some of my old mans older brass today and happened to stumble upon 5 brand new boxes of 243 norma brass that appears to be from the 60's or 70's. It is new brass but was a little discolored so i through it all in the tumbler for a few hours and it looks brand new. I guess my question is does anybody think that this brass wouldnt be safe to load? It just so happens my new tikka t3 lite in 243 should be in on tuesday so id like to give this brass a trygun)