Duke,
Some years back I got a SSK 444 Marlin 16" bbl to use with a shoulder stock. Worked quite well but did walk smartly to the rear with full power loads in a very light rifle!!!

Right now I am working with my 410 14" bbl to try out on a GA quail hunt next month. I will probably take it out for one afternoon to see how it does. I will be usually useing my 12 ga Side by Side
Wayne