Discussing obscure wildcats and gun builds are a big time waster for gunsmiths. But what can you do? Even though this is a nutty handgun wildcat some reinventions of the .22-250, .300 WM strike me in the same way. A round about way of accomplishing nothing.
If you think that is annoying you should try working in the car/motorcycle tuning business. I can't count how many times I had to explain to someone that they can not in fact put a small block chevy v8 into their Geo Metro or some crap without shit tons of work. Just because the engine is made by the same parent company people think that it should just bolt right up. People always seem to think engine swaps between cars or bikes of the same model or brand are just a few wrench pulls away.
i have been in process of assisting the developement program for the up and coming .50 badass cartridge. the details are still hush hush but i can divulge that it involves a 50bmg size casing necked to .17 caliber and will achieve trans-ludicrous velocities.