I tried 3 different factory loads hornday 165 , 150 Remington, 180 federal
Cleaned it tried all again got about 1 1/2 - 2 inch moa , bought some 150 sst
Got about 1-1 1/2 inch wasn’t too happy for the price it cost, let my buddy use it for a pronghorn hunt , he liked it with the ammo he bought fedral premium I think? He bought it for his son and seems happy with 1 +/- moa
He’s happy, I’m happy to not have it = win /win
have a 6.5 prc ridgeline that groups excellent after the break-in, HOWEVER, it seems to build pressure quickly with factory ammo (heavy bolt lift even after a 2 piece spring)
newer lot (slower) eldm seemed to group the best (below an inch 5 shot groups at 200 yards) but it was very picky early on and hotter factory ammo has not grouped that well. Good thing is the 147 is an absolutely killer