This appears to be one of the proposals that the anti-gun folks came up with at about the time that these same geniuses (Pat Moynehan, for example) were proposing such nonsensical ideas as putting serial numbers on BULLETS!! Component/ammo manufacturers pointed out that, among other things, to try to produce primers, powder, etc., with such characteristics, in addition to probably being unattainable, would result in a product which was actually very dangerous (unstable!!). Besides, would we want our cops and military folks running around with ammo made last year that might not go bang?? I believe this idea went out along with Bill Clinton and other such ilk!! Hopefully forever!!

Keep yore powder dry!!