RE: 30mm rings
 

Try the Burris Signature rings. I use them on my 30mm tube and IMO some of the best rings a person can get. The rings use a shim system, that works pretty slick.

RE: 30mm rings
 

If you going to do long range shooting, get the Burris set. They have some cool offsets so you will have maximum horizontal MOA adjustment if you have target turrits. If just hunting, just about most will do.

RE: 30mm rings
 

Power, it all depends on how much your 30 mm scope is going to weigh on what types of rings to buy. If it weighs more than 20 ounces stay away from the Leupold/Redfield front dovetail setup. You' ll have to go with a more sturdily constructed setup like Badgers,Near or something along those lines. If it weighs less than 20 then the Burris signature system is the most secure and will not mar your scope tube. I think Leupold Qrs are ok but nothing to write home about. If I were in the quick detachable market I would buy Talleys and not think twice about it.

RE: 30mm rings
 

Badgers. A freind of mine just put those things on his FN tactical. They weigh almost as much as my rifles:D

Just kidding. They are some serious rings for over 100 dollars