Optimal Fill Ratio?


Well-Known Member
Just playing around with quickload to see what the powders I have at home could "theoretically" be used for. Some have a fill ratio of around 88 to 89 % of the case, is there an optimum fill ratio?


Well-Known Member
also run fairly full cases

all of my .222 loads are slightly compressed with bullet seating (across 45-60gr bullets)
one of my 300wm loads is compressed, the other is not far off
only my 130gr .270 load is below where I would like it to be but I simply don't want to mess with what is a straight forward accurate round (albeit slower than factory spec)