If the bill stops 3 in down you have a warped or swelled stock.There should be a mark on the inside where the barrel is touching. Before you put on another scope pull the stock and sand or scrape the place where the stock is hitting the barrel
until a bill will go most of the way to the bottom then reseal.
They will shoot away from where they touch. To prove this take another rifle that you know shoots and wedge a paper match between the stock and barrel 3 in. down and shoot one shot,then move the match to the other side of the barrel and shoot again.
Then remove the match and it goes back to zero. If you just put on another scope without fixing the problem the rifle will drive you nuts changing zero every time the humidity changes and the stock dries out or absorbs moisture .