220/219/ 94 Barrel interchangeablity

What models interchange? It looks like the 220 and 219 barrels interchange with a little fitting. What about the 94 series and others. I make the assumption that the 220 and 219 actions are the same dimensions.
I make that assumption since a 219 hornet barrel fits on my 220, as does a 20 ga. I am eager to find out about the other models that will fit a 220 action since I am looking for a full choke barrel that uses a clip on forend. Thanks inadvance BigBoy.

219 and 220 I know for certain as they use the exact same action. I'm 99% sure the 94 is totally different, but I've never owned one so I can't say with absolute certainty.

I think the 94's would have worked but the 94's have a screw holding them to the barrel instead of the hook that the forearm latches to on the 219's and 220's.