The thing about it is you can load the light loads in the .327 case, I have been reading about this a lot and some people are getting pretty darn good groups out of .327s loaded light. Also the jump for .38 specials out of my .357 Max would be about the same and they are plenty squirel accurate outta mine. They're are several guys here in handy land that shoot .38s, .38pecials, .357s, .360 DWs, and .357 maximums out of the same barrel with great results.
BTW Not to really step on your toes Larry our doublegunners , You certainly do fine work and seem to know what you are talking about. I would certainly like to have one of your barrels to try it with. I am going to buy a lathe I hope next summer and put some of your ideals to work myself. Cash is a little to short in supply for that kind of toys right now thou. Keep posting I need more input.