Originally Posted by
Shooting Illustrated
True to its name, the M+M Industries M10X is quite accurate in deliberate fire, its nitrided barrel capable of 0.7-MOA groups with match-grade ammunition. The unfortunate catch is that optimum accuracy requires single loading or using a drum magazine with single-column feeding. When fired semi-automatic from the standard AK double-stack box magazine, the gun shoots two distinct small groups adding up to 1.5-2 MOA. This inconsistent cartridge position is typical for all double-stack semi-autos with two-lug bolts, and it's only less pronounced but not absent in multi-lug designs like the AR-15. M+M is now developing a magazine with a single-column mouth specifically for precision shooting.