I used to hunt with an old fellow that was half indian. He was a real character. Chewed Red Man all day, had no teeth and cussed like a sailer.
He was also one of the best deer hunters I have ever known. He had a well worn Remington 1100 20 ga used #3 buck and hunted some of the tightest places you could find. He was like my dad if you heard him shoot you knew you were dragging a deer. That what us youngsters were for.
Like the others said pattern your gun and keep the distances 30-40 yards and you will do good.