Did some more research on the .357 Bain & Davis, the .44 Remington Magnum necked down to .357. The 3d ed. Hornady Handbook lists 357 B&D in a 10" Thompson Center and shows 2,100 fps with the 158 grain JHP.
Just out of curiousity, I flipped over to the rifle section to the fabled .35 Remington and noted that in a Marlin 336 with a 20" barrel the top speed with the same 158 Grain JHP was 2,200 fps.... a measly 100 fps advantage over the .357 B&D in a barrel that's twice as long.
They didn't test the 200 grain bullet in the .357 B&D, but in the similar .357 Herrett in a 10" TC Contender they achieved 2000 fps with the 158 grain JHP and 1800 fps with the 200 grain Spire point.
By comparison, the .35 Remington in its 20" barrelled carbine achieved only 2000 fps with the 200 grain round nose.
What does this mean? It means that you can rebarrel (or rechamber) a Marlin 1894 for the .357 B&D and duplicate .35 Remington performance in a shorter, lighter, "cuter" package. You would also have an inexhaustable supply of brass in the ubiquitous .44 Remington Magnum. Elsewhere on this board, folks have complained about the scarcity of .35 Remington brass. Furthermore, the .357 B&D has only a 10 degree, gently sloping shoulder. Why not do a 40 degree AI type shoulder for another 100 or so fps? The cartridge headspaces on the rim so fireforming would be a cinch.
With this rig the .35 caliber cultist who likes .35 Remington ballistics in a short handly lever action carbine, could utilize the Marlin 1894 lever action which is smaller and ligher than its big brother the Modle 336 and have access to unlimited supplies of brass as well.
Of course it's a wildcat and strictly and handloaded proposition, but that's the price you pay to be on the cutting edge!