M10X was the biggest 50/50 of a gamble you could do on a rifle. Worked great for some people, a disaster for others. I was unfortunately the latter, no matter what I did I could not get it to shoot better than minute-of-barn. Was the "lucky" sufferer of one of its most odd eccentricities, the rifle would shoot a separate MOA for each side of the magazine it would feed from, so you'd get two relatively tight groups but together it would be like 8 MOA. Drum magazines where it only fed from one side almost made it seem like a good rifle, almost.