I contributed to the original post years ago and still enjoy my old Manton loaded as I described. To be honest I hope he dropped that 570 gr bullet idea. I'm afraid if he continued down that track by the time he got a load to regulate the rifle would be ruined. When Ross wrote about that 570 gr load I believe he was referring to a single shot specially built for that load. The original poster was but another example of someone wanting to teach an old dog to do new tricks rather than being happy just to hear it bark as it was intended. I hope he learned from that series of replies.