what rifle are you loading for, from my experience the triple duece is not fussy at all, mine pretty much shoots under moa with any load, just some groups are better then others, t3 lite, I have been having great luck with benchmark powder, with varget a close second. Bullet weight is another variable, any idea what weight bullet you are going to load for?? also do a search in the reloading forum because there are lots of pet loads posted on here already.