A Bedding question

[Beekeeper]

deleted

[S.R.Custom]

....285 lands .293 groove ...every thing is the same ,factory loads,reloads,P/P to bring the boolit to groove size.
It doesn't matter it is always 10 minutes of berm...

That's because nothing's engaging the rifling; you're describing smoothbore accracy. You need a new barrel if you're going to shoot .284" bullets.