Hey guys and girls. I am semi new to reloading. I have been loading for about 3 years now. But as of recently I have gotten into casting my own bullets. 9mm, .223, and 38 spl. I just got my first .223 lee mold and I have kind of a two part question. First being if I powder coat my rounds do I even need a gas check because i coat my 9mm and 38's? and second if I do need to or if I decide not to coat them how do I size it with the gas check? As in do I run them through my lee sizing die upside down or right side up?
Any advise would be greatfully appreciated. Thanks everyone!