bigblock,
Thanks for the post. I've done a fair amount of ML shooting over the past 10 years (probably 40 or 50 range sessions), and I generally just hose my TC barrels off in the shower, running a mildly soapy patch with a cleaning rod. Super hot water followed by a little compressor blow on the locking lug spring area and then some CorrosionX (great product) keeps things nice and shiny. I do use natural lube (lots) inside the barrel for storage, and it seems to work pretty well.
But, I've always been looking for just such a product that you just posted. Man, that looks like a great discovery. THANK YOU. I'll give it a try ASAP.