Re: Shelf life
If it is stored properly in something like a military ammo can air tight and kept at a relative mild temp the shelf life should be well in excess of your life time. I have some WWII era ammo that shoots just fine and it was not stored the best in the world. I have been shooting IMR 4895 powder that was pulled down from military ammo made in the late 50s to early 60s and it chrnos with in a few FPS either way as brand new IMR 4895. I have been shooting some CCI pistol primers that I know has to be at least 40 years old that a fellow gave me and they do just as well as new ones.