Quote Originally Posted by Berserker View Post
Not sure what a round back is. But you are talking about this? The 10 MOA should raise me up. They say it is for making long shots over 600 yards. I still wonder why I need this?

http://www.egwguns.com/scope-mounts/...-mount-10-moa/
You may not need a new base (just an option) but you have got to start somewhere. Try checking the rings (as good a place to start as any), they could be mismatched. If you feel they are OK then the base is the next thing to check. You may also want to remove the base and lay a straight edge across the front and rear mounting surfaces and see if there is a gap under one or the other.