Polishing Barrel

[dipitydo2003]

Does polishing a 20 gauge 870 21" barrel with J&B Bore cleaner and J&B bore polish effect the POA or POI. And has anyone have good results in doing this?   

[southernfly]

I have same gun and dont know if poa or poi changed but pattern density improved a good bit. Last year I only did the cleaning step and thats where I saw the improvement. This year I cleaned again and polished. didnt seem to change anything over cleaning

[TN-Hunter]

Polishing will help the center density of your pattern well worth the time!