BARTLEIN barrels say that increased roughness causes increased fouling.
The various fire lapping kits on the market can include abrasives down to 400, 600, 800 and 1200 grit size.
Regarding the claim that a 'too smooth' bore increases fouling- maybe those who push that theory can provide
and explain the suppprting science/physics behind it.
Feller, think about it! Ever pushed a clean finger across a clean piece of glass?
