Re: Burris signature rings?
The OP has the offset insert kit, which includes 0.005", 0.010" and 0.020" offset inserts (1" kit). So there are plenty of adjustment options.
One 0.020" offset insert will give about 17 MOA angular offset if the rings are separated by 4". One offset insert in the front ring and one in the rear will give up to 34 MOA angular offset, if the two inserts are oriented opposite to each other.
However, by rotating one of the two offset inserts 180 degrees, the angular offset can be reduced from 34 MOA to zero MOA. So there is a way to orient two 0.020" inserts so that any ring misalignment up to 34 MOA in any direction can be exactly corrected. You really don't need the 0.005" and 0.010" inserts.
Granted, Signtature rings aren't the most attractive rings available, but they can correct a host of base/receiver/barrel alignment problems, and you don't need to lap the rings.