ORIGINAL: Pydpiper
Thank you, that helps a lot..
There is an abbreviation here as well, but only on one box, 3 1/4 DR. EQ, I think that is the one that got me wondering..
That is a reference to an archaic method of measuring black powder. It basically refers to the black powder used to attain a certain velocity. Some old habits are hard to stop, like wanting to beat on someone's head! LOL!