Many of the tips I see for cleaning BP guns recommend removing the barrel from the receiverfor convenience of cleaning. I am wondering tho, if you have a scoped gun, would removing and replacing the barrel from the receiver, possibly slightly change your sight picture and maybe alter the POI of the weapon? Or would the effect be so small as to be negligible? I'm guessing that if you were careful to use the same force in tightening the receiver screw that it would be negligible.

Any thoughts?