Can you tell the manufacture date from the number inside the box flap of rifle ammo? I have two boxes of 250 Savage ammo (87 gr. and 100 gr.)from Peters, the are rustless and made with smokeless powder, imagine that, LOL. The 87 gr flap code is U11T and the 100 gr. flap code is A15BD. Thanks for any help.
Steve E..........