10-14-2012, 12:51 PM
bobke Wrote:Bob-
Since you've indicated in the past that the attention to details in the loading process is a contributor to your consistently positive results, do you find runout and/or neck concentricity factors to same or best addressed in die setup? I'm more than occasionally frustrated with wide disparity of one or both, even when trying to pay particular attention when sizing brass. Using Redding FL comp dies with 288 bushing. Some runout .001 or less, the next piece can be out by .005, without any seeming variation in technique. Your comments welcome.
Hi Bobke,
I was going back over this thread as I begin to firm things up and noticed I had not answered your question. I have never correlated runout to a degradation of accuracy at any distance less than 300 yards. Up to .003" of runout is acceptable even at 1,000 yards but even at that distance .005 will not put you out of the ten ring.
I'm using the same dies as you and quit measuring runout because I never find any exceeding .003" using Lapua or AA brass. I did see greater using Wolf brass and just tossed it all away as useless. In other calibers I do see a higher variation in runout. I have one of the Hornady case concentricity gauges and simply straighten them up. So, I'm a little perplexed why you would be seeing as much runout as you are. But at 100 yards it really is not a factor.
Bob
