First off I'm new and new to shotguns. I've had one shotgun my whole life and got it for x-mas in 1980, a single shot 20ga. I have always hunted but never birds, well now I just purchased a 12ga. Super Nova and was wondering from reading on the net is it really important or only for comp use to polish the barrel ? I ask now before I fire the first load through it. Thanks in advance and don't beat me down to bad, David