Tight group, but one flyer
I've been developing a load for my ruger M77 MKII in .308. I know its not known for accuracy, but i've free floated the barrel and have been trying to get a load for 150gr corelokts. I've been using Fed 210 and IMR4895 and I got the best group around 46gr., by best I mean that it would shoot all but 1 shot under 1", today it shot all but 1 shot under .5". I am making good shots, and letting the barrel cool between shots, nevertheless the flyer is sometimes the 2nd or 3rd shot. Part of me thinks the powder model/weight is off, but then why, at 46gr, would it shoot all but one accurately? Whereas other powder charges shoots all shots inaccurately. So maybe its not the powder charge, so could it be the OAL? Could playing around with the OAL possibly solve this flyer problem? Also, i've been just FL resizing the brass, not doing anything fancy, but should I consider playing around with necksizing or removing the expander ball or anything else for the brass? Any suggestions are appreciated, thanks!
Last edited by fasteddie911; 08-27-2011 at 09:23 PM.