Ok, good.... Thats key for it to stay put. I would suggest using double sided tape to position the mount EXACTLY where you want it and drill the outer two holes first, tap them, insert screws, then do the others. Also... Use the top horizontal axis of the receiver as a guide to leveling the position of the mount..... Use calipers to scribe a line where the bottom of the mount would be is one way.. notch the stock last, and get the scope LOW.