I'm new here and still searching all the forums for info. If this has already been discussed, please point me to it. Of the .338s that will fit in a Weatherby MkV action with the 378 boltface, is one known as the best for accuracy? I know the .mil uses the Lapua. I also read here in LRH that the rebated .338 RUM is a good shooter. It looks like the Excaliber or the Kahn are about as 'big' as I could go with this action.. how are they with the high BC bullets? And.. there is a suspicion that the Weatherby offerings, with the long freebores, may not do well in the accuracy arena when using the long-nosed, short-bodied high BC bullets? And... I'll be single feeding, so OAL is not a problem.