Greg, both Randy Robinett and I played with big case .30's for HBR.

   Mine is called the '30 BeWare' shoots the 125's into sub .250 groups at 3,400+.  

    Recoil???  Yeah...there's a bit of that, as best I can remember. Things are still a bit fuzzy about the month or so I worked with it, but the headache has gone away and most of the bleeding from my ears has stopped now. ;)

    This case has serious potential in a 13.5 lb. VFS gun, though it may take a 150-ish bullet to better balance the case. 

     Maybe R.G. will have some thoughts on this as well.