I think Ken Waters did a write-up on a Marlin 336 regular carbine, though the barrel profile was a bit heavier than the .30/30 profile. That was in the old three-ring Pet Loads book I have someplace around here.

It shot quite well, IIRC. The cases are made from .25/35 or .30/30 cases, if need be.

I think it would be an interesting little rifle, but frankly, I'd rather have my little CZ 527s.............

You can roll a turd in peanuts, dip it in chocolate, and it still ain't no damn Baby Ruth.