Because of some recent posts and questions, I have gotten off my @$$ and posted the pics from a patterning test I just conducted. All targets are the result of 5 shots taken at 25 feet, which is the longest shot I am likely to have to make in a HD situation. They were all fired from a Remington 870 Express with a 20" RemChoke barrel.
I have decided on using #1 Buck for my HD needs after reading these 2 articles. I've posted these before, but for those who have not seen them yet:
To be honest, I think either load with either choke would be adequate for my needs. However, I think I'm leaning towards the #1 Buck with the Improved Choke.