View is a visual inspection to ensure the barrels are not too pitted, dented, rivveled, cracked, holed, or otherwise flawed. Also, to ensure the gun is on the face and that teh action is not cracked or otherwise defective. If you can make a barrel out of steel so strong that it can withstand proof at 2 thou thick, the proof house will proof it. Their job is only to see if it can withstand the proof loads without failing.