The question always seems to pop up on gun forums, including this one, about how long ammunition can be stored. Here is some .45 ACP ammunition that was manufactured in 1918. Not a single misfire.

Cool.

.20 cartridges? The box has 1/5th of a cartridge in it?

Corrosive ammo stays viable for a long long time.

What about modern smokeless powder ammo?

The ammo tested contained smokeless powder..."Corrosive" refers to the primers (salty!)

I am currently shooting .308 from the 60's, military 30-06 from the 30's 40's and 50's and a bunch of paper hulled shotgun shells from various dates with no problems. But I know the ammo was always stored properly and I always assume that the primers are corrosive.

That said I have shot 5 year old stuff that was stored in a damp crawl space/garage that was junk

It hurt me a little to hear that old box rip open...

I fired some 8x56R Austrian that was WWI era...it went BANG when I asked it to but that straight pull bolt gun (Steyr Mannlicher M1895) was punishing to shoot.

I had some 45acp from WWII. It seems to have more recoil and power than Winchester white box ball Ammo. It even penetrated 15 layers of Kevlar, where white box would not.

Don't worry ... it's not the last of it. I bought a few boxes of WW1 45 auto to keep with my Colt WWI repro 1911 .....