Brokenscope,
I had a Bushnell Sportview on a 3006, it came with the rifle. If I farted too loud on the way to shoot it would be off by inches. I put a Leupold on it and fixed the problem. I'd try another scope. Just a few months ago I took out the old sportview and put it on my Handi Hornet.22, same results/
BeanMan