Well, kinda a side thought, but I have tumble lubed standard lube groove bullets successfully. So, I'd say you don't have to use a T/L design bullet to tumble lube, so your choice of molds is wide open. My 9mm gets a Lee 125 gr., RNFP and I've tumble lubed, pan lubed, and PC coated this bullet and size it for my 9mm, .38 Specials, and .357 Magnum.
I really like 45-45-10 as a tumble and dip lube. It works and even though it's "mess" quality is comparable to alox, it smells better, and just a little bit is all that's needed.
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