The 6mm-284 would be better IMO. That pile driver firing pin in that Mauser isn't going to help your accuracy but it will ignite a primer.
Guess you missed this the first time around.
It would be a lot better in an action other than a Mauser. The long lock time is a hinderance. A regular .243 Winchester would be just as good.
Tell me about YOUR 243AI?
So now maybe you could tell me about your 6-284 while your at it. Good luck.