LRRPF52 Wrote:It's the gas system. 8208 XBR has a pressure curve that can spike the gas system in a long barrel gun with the extra dwell time. Bwaites has no issues with one load in his 20", then the same load cranks out belted magnum Grendel brass from his 28".
This is exactly correct, LRRPF52 has an incredible memory! I can crank out 123's all day with my 20" and the XBR 8208 loads at 27.5-28.5 and have no issues. That same load in my 28" makes it one shot brass. You cannot resize Grendel belted magnum brass!
![[Image: beltedgrendel.jpg]](http://imageshack.us/a/img687/4191/beltedgrendel.jpg)
The most significant thing I've confirmed with this is that looking at primers is mostly useless in AR's, because these primers look pristine, there is no ejector swipe or other sign of pressure on the base either. The case just becomes belted. I threw away about 60 pieces of brass while developing loads. Fortunately, it all had more than 10 reloads on it, but it still hurt my heart! LOL!!!
You seek escape from pain. We seek the achievement of happiness. You exist for the sake of avoiding punishment. We exist for the sake of earning rewards. Threats will not make us function; fear is not our incentive. It is not death that we wish to avoid, but life that we wish to live. - John Galt
