I could probably figure this out if I just did a little research but i thought id ask here first. heres the deal. I have a 1" tube leupold with a 40mm objective on my 338 right now sitting in Talley lows and it sits just off the barrel right where i want it. I am switching to a Leupold 30mm tube I am planning on getting 20 moa tapered base and burris extreme Low rings. so will that set the objective approximatley the same height from the barrel with the new setup or will the base make it quite a bit higher? the reason I am asking is if its going to sit higher I may as well buy a scope with a 50mm objective. if this rambling makes sence someone let me know what they think.