So, Weatherby is moving away from the Mark V to this Remington 700 clone. Does that mean the end of the Vanguard/Howa? I don't see why they'd need the Vanguard with this rifle, and it offers advantages to them that the Vanguard doesn't, e.g., it's their action, it is compatible with all of the 700 stocks, bottom metal, triggers, barrels, etc. So, will they go with a premium Mark V line with gloss wood or synthetic stocks, and a budget/entry line based on the 307 with synthetic and chassis stocks?
If they have good, repeatable precision on the 307 it will definitely make a splash in the R700 clone market, but they should offer it with a .378 bolt face for short actions... or sell additional bolts.
PTG makes an R700 clone for $700, and it has a reputation for being a solid, precision-made action. That's the 307 'builder's model' competition.