I've shot hundreds of pheasants with the 20 and the 28 over pointers and could not discern the difference between the 1oz 20 load or a 7/8 to 1oz load in the 28, nor a difference in effective range.

Plus if a 28 is built on the proper frame its like carrying Tinker Bell's wand compared to the larger gauges.

On doves--perfection.