I bought some Fed 210 primers approx 15 years ago. I thought they were old then. But, for .73c, why not. I load CCI 200 primers for our standard cartridges. Anyone use the Fed 210 as a direct replacement? I know shot shell 209 primers can vary your load some, will there be much of a variation between the CCI 200 & Fed 210? Looking at the package, I'm guessing these Federals are 80s vintage? I haven't tried any, no Idea if they will even go bang. They have been stored correctly since I got them off the store shelf. Thanks in advance.