As usual JB nailed it. Every few years I'll do a thrown verses weighed charges experiment, usually the thrown charge groups are more accurate.Why? probably just too small of sampling there is probably no real difference. I think we used to weigh charges because it was one of the variables we could control trying get poorly bedded actions shooting mediocre bullets to shoot tighter. Old long grain H4831 and IMR4064 shooting near max charges are the only loads I would weigh anymore. I don't use those type loads very often anymore so the issue has been long settled for me.
