Probably about 50 FPS or so.
If its the V block stock it does not really need bedding IMO.
I had a 6mmBR in an unbedded choate stock and it shot 3/4" at 300 yards
But it had a machined recoil lug.
I wouldnt know why it does not fit the V blocks unless it is a bad stock or the action is warped.
I would just start out with a recoil lug and a SSS trigger and see how it shoots.
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