Decided to load 10 more 115DTACs with 41.8grs H4350 in my 6 Creedmoor to test along side the other 10 loaded with the Hornady seater with 41.7grs that I intend to shoot in the spring, more of an excuse to load up something cuz of boredom or whatnot. When I seated the DTACS, I did not seat them half way and turn the shell 180degrees, just a straight seat and nothing more. I then got my Hornady concentricity gauge out and checked for runout, the results were a pleasant surprise, worst was .00225", the best was .0005", most were in the .0015 range. When I seated the 41.7grs loads with the Hornady seater I did seat half way then turn 180degrees and seat the rest of the way and they were slightly more out of runout than the Forster seater, about .001"