You're probably going to need "medium" height rings with a 40mm objective, but what TB posted is generally the direction you want to go. Keep it as low as you can, with the scope bell just off the barrel.

My "standard" mount is a leupold one-piece base with matching rings appropriate to the size of the scope's objective. I don't use Pic's on hunting rifles. They tend to be much taller than the leupold base.