cycling issues with the grendel

[drykilned]

I think i have now resolved my mag feed problem. After modifying magazines, grinding the ejector, trying multiple magazines and numerous other things i dismantled the bcg and cleaned relubed everything using white lithium grease on everything instead of oil and that special "milspec" expensive grease. So far, works like a charm on both starline and hornady brass. I still, however have the accuracy/velocity problem. 140 gr speer hotcor @ 2110fps (max listed charge of cfe 223) is most accurate at 1" 4shot group with 1.75 including a called flyer! 123 sst sucks at any velocity, 2464fps max charge 31.2 cfe 223 (5.5") @ 100 yds. 18" 1:9 bca stainless 5r barrel, brownells type ii bcg. Trying 120 speer and/or 120 nosler bt next. To be used deer/hog hunting at under 300 yds, mostly 250 or less.

Vascar2, appreciate all the help. Any more suggestions welcome!