Rem. 700 ADL 24"barrel.Fl sized Win. brass.Rem 9-1/2 primers. 165gr SGK. Ok, shoots tight at 48.6g (avg. .69), group starts to open at 48.9( avg. 1.3"),then gets back under 1" at 49.2(avg. .84"). No pressure signs,measured cases and primers,no extractor marks, smooth bolt function.I can't find...