I shot 3 paper targets with each of my choke tubes about 30 yards away. The first was an improved modified, it patterned pretty good a few more pellets to the left but it could have been me since I was not using a gun rest. The other 2 full chokes shot way to the left. Is this a choke problem or barrel, its an 1100 classic trap. Guess this is why I can only hit anything with my improved modified choke.