I bought out a Gibson’s Store in Silver City NM of all of their Primers and some of their powder that I was using at the time back in 1983. I bought a few thousand Small Rifle Primers even though I had nothing at the time that used them. The price was right, as they say. Fast forward 25 years. I’ve got a 223 now. I load some cartridges, take them out and Bang Bang Bang. Not a single failure. Federal primers. I live in Arizona but my loading equipment went with me on the road for years from N Mex to Utah to Minnesota to Florida over a 4 year period. I keep my primers in Tupperware tubs. And I’ve still got some Bullseye that still goes Bang in my 1911! Like I said, the price was right!