So, Your saying you "think" a factory 200RN up against a worked up AB hand load will be prove the AB to be at least 2" better in a MPBR compairson. To quote my niece... Well DUHHH...
Thats like bragging your (Insert top of the line muscle car car here) beat your buddies. (Insert ANY run O the mill automobile here)
Again, I don't see the point? Under your criteria, YES, ABSOLUTELY the AB will be better at about EVERYTHING...accept cost. BUT the better ballistics will have nothing attributed to the bullets shape, and everything to do with faster velocities. You might as well load a AB to 2000 fps and one to 2800 fps and bet on the 2000 having poor PBR numbers... It's a moot point.
"Even maxing a RN handload it will never keep up with an AB."
Just based on this comment, I stand completely corrected... You are 100% correct, you DO need to waste some powder and do some testing yourself. PLEASE do, do this! For some, there is no better "teacher", than to see the results of "testing" first hand. Then, when you have collected your findings on the matter, please get back to us and let us know what you have learned...
CW