Back in the day when I was an avid shotgun shooter (6 nights a week) We would shoot "games" for $$. It is not uncommon to break a clay target at 100+meters. This is using (in my personal case) Federal 2.75 paper hulls with Federal two piece wad, ounce and an eighth of shot and 19.5 gr. 700X or Remington plastic hulls with "Power Piston" wads, ounce and an eigth of shot and 21.5 to 23 gr. of Red Dot. These were with 71/2 shot in the Federals and 6s in the Remington Plastics. Keeping in mind, the choke was a deciding factor also.
Here is some additional info on "Low Recoil" Buck:
http://www.shotgunworld.com/bbs/view...222033&start=0
As far as pattern and recoil goes, I believe them to be secondary. Its penetration that is the deciding factor.