and in grain weights they are all over the scale....
is it better to use a a powder that mostly fills the case?
lets say 1 grain under max for a given bullet .....
aa #2 tops out at 3.5 grains
aa #5 tops out at 6.6 grains
aa #7 tops out at 9.7 grains
now then, with #2 it might shoot as well as #7, but i see the potential for double or triple loading...and it seems i read somewhere that you get better ignition with a case that has more powder volume in it than a case that has a tiny bit of powder that is supposed to do the same job.
so what do the wise ones say?