I came across a .32 RF Stevens Fav. some time ago. The bore was in horrid shape - no rifling left at all - rotted out.
I converted the block to CF and put a piece of .30 cal bl. on the action using a drill for chambering the .32 S&W short CF. I loaded, I think 1.5gr. bullseye with a 115gr. bullet. Seems to me, they were doing about 800fps.
Shot a bunch of grouse with it. Fun little gun.
At the local gun show, I managed to pick up a CF favourite block (I think) with lever.
I'll have to soak them & hope to free them up.