my list of powders for 6.5 creed
rl 17 , h100v can use the least amount of powder and get higher speeds
h4350 , imr 4350 , Imr 4451 if you can find it , both imr powders will speed up in summer and slow down in winter personal I liked imr 4350 even over h4350 at 41.9 gr of powder in the winter It gave me great speeds ( slightly slower than h , but in summer it ran faster than h and around the same numbers .
6.5 stabal , varget , and accurate 4350 , n555 ( these shoot real nice but your probably going to need larger loads to get the same speeds as the other powders )
n550 and rl16 ( whileI like the way they shot was horrified by the ammount of powder needed to get the bullet moving ( I am sure another rl powder might work in there like 22 or 15.5 but I have never tried it so I don't know
for 308 the only ones I know of are 8208xbr , varget and imr 4895 betting there are many others I just don't know of .