I have short chambered, lightweight 28s. They recoil heavily with factory loads. My Francotte weighs 4 3/4 pounds. I load regular 2 3/4" hulls with light shot loads with a bean or two to take up the extra space. I don't change the powder charge or wad. The lighter shot load lowers the pressure enough that I don't worry about the length of the shell. However, the idea about having a skeet shooter bring you some RSTs is a good one.