Hey bud, I feel your paint on the predator stock. I've had PHMax1 in a .260 for about a year. The gun will shoot better than I can. I just started working with it this fall and just put a coyote through obedience training with it, "lay down!.... Stay!... Dont eat deer!.... good girl..."
Home - Stockade Gun Stocks
Stockade will make a replacement stock for the action on the PHMax1. I email'd them and they got back to me quickly and said they could do it. I have not ordered one yet but probably will this winter. There are not many options out there for replacing this stock.
The accuracy on mine is good with the factory stock but have stubby arms and the stock was too long for me. I shortened the stock and replaced the factory recoil pad, the factory pad must be meant for larger calibers than the 260.
I'm interested on how you do with you .243, I like it!