I have been casting and powder coating for years, but am paying more attention to the Accuracy of my rounds. Boolit base does effect accuracy and some of mine have imperfections from running them thru a sizing due and distributing excess material to the base. If there is a little Lead flashing at the flat base it is deposited unevenly and this should cause accuracy issues. Spruce cuts are not always the best with small voids.
My typical reload groups are approx 20% larger than factory FMJ. Lots of variables to throw in there. Are perfect bases possible?
How good does the base have to be for good handgun accuracy?