Bought a new Synthetic ADL in '97. I have never fired anything but Federal Classic Hi-Shok 130's and the first 2 shots I ever fired went through the same hole at 50 yards. Needless to say it groups em almost through the same hole at 100 all day long and I have never had the urge to try another load in it. I probably cleaned the barrel for 2 hours or better before I ever fired a shot and cleaned it thouroughly after each of the first 5 shots and every 3rd shot after that to around 25. I can shoot diff lot #'s of that load and also get the same results. I love a 270!!