Depending on which/how many cartridge types you are reloading, there is no such thing as a "favorite brand" of powder. For example, in your .270, brands I would consider using wouldinclude Accurate Arms, IMR, Hodgdon, Norma. Alliant, and VV. Powders for the .270 might include AA 4350, IMR 4350, IMR 7828, H4831, H4350, Norma MRP1, Norma N204, and Alliant RL 22 and RL 19.

Of all of thesepossibilities, my favorite powder for my .270 WIN. loads is IMR 4350-not because it gives the highest velocity, but because it delivers the best accurtacy I can get with both 130 and 150-grain bullets, and with adequate velocity levels for my purposes. The highest velocity loads I had for my .270 was with Hodgdon H4831, but these loads were not the most accurate, so I quit using them......