OK fellas, maybe I am just too tired to think tonight but I know with the wisdom this site has I will get the correct answer's
If, you have a scope set in Medium rings and zero'd at say 100yards and you replace those rings with Low mounts won't the gun shoot low then at 100 until you re-site it in?
And, how much change should one expect ? And yes its a centerfire rifle question...
PS, Midway has Talley 2 pc mts right now for $31.99 on sale FYI for Rem 700's - good buy!