I recently bought a MK II GL and have been play'n around with it and am gett'n frustrated. I've tried CCI blazer, federal lightning, CCI mini mag, and aguila subsonic 40gr. and it won't group better than 1.5" at 50 yards. Then on a whim remembered I had a box of some 60gr SSS aguila rounds and tried them and I got .5" groups at 50 yds(although POI is lower and to the right). I have never got them to shot that good in anything else. I was thinking that this rifle should do better with the common hi-velocity ammo. At first I thought I had something wrong with the optics or the rifle but it has shown it is capable of accuracy, just with odd ball bullets. Has anyone seen this before?