Ok thanks for that reassurance UN. As far as what I'm going to load it will sart at 45grns and end at 48-48.5 but I'm sure accuracy will decline way before I get that high.
Also I didn't even think about the properties of the steel changing and especially the weight of the op-rod I was just thinking billet had to be better haha. The car side of brain took over on that one. I don't plan on shooting anything but reloads and M2 ball so I probably won't get an ajustable gas plug(you never know though) I was just wondering if it could be done. But after reading what everyone said I relized their would be no point even if it could be done.