Originally Posted by sodak
I can tell the difference between shooting with a bipod and shooting with sandbags in group size and POI. I'm guessing that it has to do something with different pressure points on the forearm.
There's not many folks who know about that. Kudos to you for good thinking and reasoning.
I'd just epoxy bed the receiver then free float the barrel such that nothing touches in forward of the receiver; no pad whatsoever under the first inch or so of the barrel. At least 1/16 inch clearance around the barrel; more at the stock's fore end if it bends easily.