Corrosive, safe or No-Go Index?
I tried the search function but did not come up with anything concrete. Is there a British .303 Head Stamp & Corrosive/Non-corrosive and/or safe to shoot ammo index/list chart? I have a box of "POF 67 7" Head Stamped British .303 I picked up in the early 1990's for the day I got my first Enfield. Being older and somewhat more informed I'd like to know what this is before I shoot it off. For example I know not to shoot British Manufacture Kynoch "K-53" & "K-54" .30-06.