This uneducated Colonial has done this on a 16ga single, and it works very well. The regulation "things" would require some working out. I do have a center "support" on the 27 inch liner.
The chamber adapter seems to add adequate strength to the liner.
I shoot medium smokeless 32-40 loads with no problem.


Dumb, but learning...Prof Em, BSc(ME), CAE (FYI)