Agreed, Ron. AR2208 and AR2209 are the 'go to' more relaxed burners than the rapid AR2206H.
Having serious consideration of the exercise, no one can reproduce the Mk VII round as a standard until they can use the open based, rear-weighted Mk VII bullet. And no one is or will be making them again.
So the best one can do is approximate.
The most important thing to do is match a tight recipe for each rifle. If you have 4 x .303's you will have 4 x 'standard' loads, if you're seeking a higher level of consistency and accuracy. If you're simply out for a hit and a giggle, then go with one load to suit all and be happy at 100 yards/metres.