Lord knows I've tried a bunch of powders and several different lubes with the same result - smoke city.
I kept reading it's the lube, it's the lube so I switched from Lyman's Orange Magic to Jake's Purple. You guessed it still smokey! Everyone says the Lee Liquid Alox is awful but I don't think it's any worse than the other two hi-temp lubes I've tried.
My current attempt to reduce the BBQ smoker effect while shooting is to use a single base powder. I'll find out at the end of the month when I get a chance to hit the range and try out the new loads.
Check out this video of a get together I attended. At the 1:48 mark a guy (red tank top) is shooting my HK with my cast lead reloads and Jake's Purple lube. Now skip to the very end and the last guy is shooting my Mac10 in 45. These 45's are cast lead bullets lubed with LLA, certainly not any more smoke than the Jake's lube, maybe a little less!
Smokestack video