Some 28ga FH info and ideas. Brenneke now has 28ga slugs, with good speed, decent smooth bore accuracy. About 260 grain slugs. SAme style as their 12ga ones with locked on base.Work in 28ga NEFs of course and 28ga O/Us.Some real good 28ga O/Us out there. 28ga is a .550 Inch bore.
But now Rossi has out, a revolving 28ga shotgun with about a 19 inch barrel. Should work ok with those slugs. You could also get RMC 28ga brass cases about 2 3/4" long, maybe 3", depending on chamber, a shorter version of our 28GA FH 3.25" case.
Maybe I get one in the future, and put on a longer heavier 585 cal barrel and set it up for my 585 Short HE. Have a switch barrel 28ga/585. Neat gun.Called Circuit Judge....Ed