Should be a higher % of pellets in the 30" circle for a given load, 12 vs smaller bores. All being equal. But there's a lot of ground to be covered in the "all being equal" department. For example, are you starting with the same # of pellets? (Reloaders often drop a little light.) Is the choke the same? Mark, I have a few 3/4 oz 12ga factory 8's from RST. I'll have to give them to you and see how they compare to reloads. Then we can try 28ga factory 3/4 oz vs reloads. We'd probably use up a lot of paper . . . but not a bad way to pass an afternoon if the weather is decent.