Rifle Scopes Lap Badger rings?

If it is "needed", then you either have a jacked up base causing the misalignment, or you need to call Badger for a replacement set. They have matching serial numbers for a reason - they're already a matched set and require no lapping.

If they're aluminum, you're likely to ruin your lapping rod before you make any headway on them anyhow. Them things are hard...
 
Well I got it all mounted, for shits and giggles when I put the rings on the base I put my 30mm alignment bars in them to see how close they were and to my surprise it was bang on! I guess it pays to shell out the big bucks on quality mounts to begin with!