My rule of thumb is this, if you can squeeze the end of the forearm and barrel together, and get contact, the barrel is not free floated enough.
Chambering, barrel contour, heavy loads and stock material all come into play
This is why/how I arrived at a possible barrel channel clearance - the amount of pressure to compress the stock against the barrel is remarkably easy to me. I've gotten used to the Kimber Montana stock - I can't make the stock and barrel touch with anything except extreme pressure.
I'm also going to try putting the front bag directly under the action. Normally I place it just in front of the action.
Rifle is a Kimber Hunter.
