ok i have a leupold vxII 3-9x40. last night i was shooting at 350yds and nockin 2in groups. the scope seemed a lil out of focus so i loosened the adjustment ring and started to focus it. when i started to adjust it i noticed that it has alot a free play in it and just wobbles. when i looked thru the scope and started wigglin it i notice that the crosshairs are jumping all over the place as i wiggle the knob. like if i move it to the left the crosshairs would go right. so i didnt thnk anything of it and focused it and tightened the securing ring back up to shoot again. i started shooting at the same target and couldnt even hit it. so im thinkin that the play that was in the focus changed the zero when i changed the focus. im not a expert but im sure that if you focus a scope the point of impart shouldnt change to where you miss a 10 inch plate at 350yds as well as im sure that the crosshairs arent supposed to move and have play in the adjustment. is this common in scopes or should i send it back and have it fixed. i emailed leupold but havent got a reply back yet.