Just to add to the thread...
Took my X5 out to the range yesterday. Gun was shooting about 6-8 inches low at 25 yards. Moved the sight up and if I do my part it was hitting dead on.
The gun ate every type of ammo I fed it. 115gr reloads, 124 gr Freedom Munitions, and it even ran some 147gr Stand 1 Chubbies.
Gun is factory except for the GG flat trigger and spring.