IMO for whatever it's worth it primarily has to do with storage conditions. If the ammunition was stored in a cool dry location it will probably function well. Stored under hot or wet conditions and that's a whole other matter.
I have and continue to use 45ACP amunition headstamped from the WW I(1917) period and it functions well. I managed to acquire several thousand rounds several years ago. It's not target grade by any means but I can still get reasonable groups with it.
I have a lot of 30-06 and 8MM ammo vintage WW II that is still reliable and not prone to problems.
I have, on the other hand, run across lots of this ammunition that wern't reliable but were loaded in the 60s or 70s. All I can attribute this to is improper storage.
Jim
Last edited by italiansxs; 10/09/07 12:10 AM.
