I have found several brands of soft cases at Cabelas for my 12FV's sporting up to 28 in barrels, including one in Cabelas livery that is very good and stupid cheap.

I also have several of these https://www.guncases.com/kryptek-cen...ifle-case.html

They'll fit a 28 in barrel in a Bobby Hart stock, with 20moa rail and Sightron 8-36x52 scope.