John covers all the possibilities: from concentricity, to checking cases, neck sizing, case trimming, headspace, powder selection to name a few. If it affects performance, John covers it.
Advanced Handloading: Beyond the Basics DVD from Jeremy Flinn on Vimeo.
Tom McD –
I took my 7×57 Argentine Mauser out to test some loads this past Sunday morning, and was thrilled with the results. Until recently, I have been building loads with an old set of RCBS FL dies. I just switched to Redding and the run-out on 150 grain Partitions dropped consistently to less than .005”. All groups were at, or under 1” at 100 yards, with one group down to .5”
I followed the techniques you described in your video, and greatly appreciate the results.