I use (in order of burning rate) IMR#4198,AlRel#7,IMR#3031,IMR#4895 and IMR#4350 powders in:300Sav,30/40,7.65Argo and 30'06 cartridges.The slower powders generally go with heavier bullets. My 30/30 uses all of the above except for the IMR#4350 powder. My 45/70 uses all but #4350 and #4895 powder.
One reason that I use a wide range of powder is that I shoot both jacketed and cast bullets.
Frank