I'm using Alcan Max Fire large rifle primers on my reloading bench right now. I bought them from an estate sale 10 years ago. No idea how old they are (decades before that I suppose) abut they all go bang.

"Delight yourself in the Lord and He will give you the desires of your heart." Psalm 37, verse 4.

"The lazy do not roast any game, but the diligent feed on the riches of the hunt." Proverbs 12:27