I was at a gun store the other day looking at 7400s and I picked one up and shouldered it, but could not make the sights line up right (seemed tilted and low). I was thoroughly confused. Turns out, this one had a stock with a very low comb on it. I picked up another with the high comb, and it fit just fine. Sights lined up naturally. Anyway, it might partially be the stock shape. I never even checked my iron sights though. I went straight to the scope. That's my suggestion. Get some Burris Signature Rings with the offset insert kit, a good scope, and a bore sighter. You'll be set up perfect in no time.