TomS308 , yes the side mount is tight on both the commie scoupe 6x42,and the new 100.00 side mount i got for the 10x40x50 ncstar (new).i took it out the other day and tryed to shoot clay pigon @ 50yd,and @100yd with paper target behind it so i could see where its hitting (this was with iron sights) could not hit the paper or pigon @ 100yd,but at 50yd got the pigon @the low right hand corner.put up another pigon @ 50yds and tryed it agine,and could not hit anything.i see where some one before me moved the front iron over to the right just off center of the mark thats stamped in it.i dont have a tool to move it back over to center,but i do have a sks tool that works to move the elev. up or down witch i did,i screwed it down a little. but havent tryed it yet .does anyone know where i can get a new barrel!