I prefer W231/HP38 over bullseye and unique. It meters better, it smokes less and seems to be more accurate than bullseye or unique. Bullseye is good, but some manuals' starting loads are hot to begin with so you have to be careful.
This all applies to .40, .45 and 9mm.
Originally Posted by ar15barrels
Lube helps whenever you are trying to get something into a tight hole.