For now I just put a Bushnell 10 X on it. I needed medium rings for the bell to clear the rail, even though that results in about 3/8" between the barrel and bell. With a longer tube you could likely sit the scope lower.
Thx - this is good to know since I'll be mounting the same scope.
I don't know why others are choosing "High" with scopes that with "Low" would still have lots of clearance. I'm not into chin welds.