Well that is the main reason I've been looking at the 28 gauge.
Should be able to hold more #4 buck than a .410 but keep some of the more desired qualities of lighter weight and recoil.
This is the post I was talking about earlier....
8" off center will be a fringe or B Zone hit at best on the average man using any of the tight patterning loads. You might want to read this Boxotruth. The 20 yard test is quite revealing. If you take a garbage shot you will get garbage results."