That's one of the issues with modern guns, chokes and especially SHELLS... they shoot such tight patterns that you have very little room for sighting error. A simple neck or head movement at 20 yards or less and it's easily a miss. Especially since TSS shot has come on the market and WW Longbeards. In my turkey guns I solved the problem by abandoning the super tight extended chokes and going with a standard full choke and TSS #9's, since there are so many more pellets and there extremely dense it only takes a few to harvest even at 50 yards so I've been far better off to give a little pattern density for a little bigger pattern at close ranges, still need to use my scope anyway...