Red Dot can produce good results. However, a word of caution. Because it is a coarse, large flake powder light loads of it (e.g. in the low 3 gr. range) do not always meter well in some powder throwers. Loads in this weight range metered reasonably well from my Lee Pro Auto Disk but periodically and without any consistency it would throw a very light undercharge which resulted in squib loads which were annoying at best (especially in the middle of a PPC match) and dangerous at worst if the squib sticks in the barrel.
It seems that when the powder cavity is small some powder bridging can occur. This problem didn't seem to surface when my loads got up over 4 grains. If you must go with low charge weights be sure to visually verify that there are no undercharges. I have gone to Accurate #2 for my 9mm loads as it is quite fast, accurate, fairly clean and is ultra fine grained so it meters extremely consistently. Win 231/HP 38 and Bullseye are also quite fine grained and will work well.