RE: T/C Omega
While some people swear by Bore Butter, I think more people swear at it. I feel it has it's uses, such as patch and bullet lube, but I don't recommend it for corrosion protection or most anything else. I'm sure you'll get several opinions on the stuff from those on the forum here.
The APP powders I found gave marginal performance and were several hundred feet per second slower than the other powders. I don't useit except for plinking, and then only because I already bought it. Good luck with your search for a good load.