I have been using my S&W 15-22(Tactical 22 rifle) for a little while now and I get a very good grouping at the moment. However I do shoot with both eyes open I can't seem to get a clear sight picture with out squinting. I am right handed. Now when i am looking down the sights should my left eye be closer or should i be mainlylooking down with my right eye? Seems like if my left eye is closer I can have both eyes fully open, but I lose focus sooner. Not sure if my eyes are weak or what... I want to do it correctly..