I have a Crown Continuum 700mm and 380mm in .25 - I also have a 600mm .177 barrel kit with probe, as well as a .380mm liner and probe in .22 . . . I am thinking there is a family of kissing cousins of other FX rifles that could accept any/all of these Crown barrel kits (.700, .600 and .380) Do I understand that correctly? If so, which models will work with these? For example, I would be interested in adding either a standard Wildcat III or standard Dreamline Bull Pup. Could I use any or all of these barrel kits in those two models?