Originally Posted By: spotstalkshootIf you hand feed a couple of 5 round groups you will have data to compare how well your loads tolerate mag feeding. Otherwise fliers can indicate more load tuning or shooting technique issues. Starting with bullets that jump well and proper powder burn rate for bullet/cartridge, as well as bullet weight/twist rate will save time and components.
What he said. When I do load development in an AR, I single feed to eliminate the variables related to feeding and jamming bullets into the feedramp.
