I was looking at the Medalist Varmint/Tactical stock #2999 for a Stevens Action with the 4.27" action screw spacing. It says the barrel channel is sized for the heavy varmint barrel but is there enough room available for a straight tube size of 1.00". Also if there is enough room can the B&C Medalist stocks be mill out by my gunsmith without chipping or compromising the stock integrity. And would there be enough of the sides rail at the end of the fore end not to look too thin. Thanks Bill