Very [bleep] interesting and indeed funny,on multiple levels.
I shoot some .243" in 243Win,243AI,6mmRem,6mmRemAI,6-284 and 6-06AI. Added capacity,at like pressure,means more speed...even for things weighing better than the "magical" 90gr threshold.
In fairness,the 6mmRem and 6mmRemAI's are the far most Goat [bleep] of the offerings,due their case capacity to COAL relationship.
Still hearin' good thangs in regards to the 243Win.
Hint.