hi I built a 338 edge with a ARC NUCLEUS action and a Brux barrel 30 inch and I reach 3018 fps average with 97.5 N570 and a-tip 300 gr, no sign of over pressure, primer good(not flattened) no stiff bolt so my question is what your average speed with your set up because im a lot faster than the load of MR Carlock ! I'm afraid a little bit!