So I am working on a load development in my R700 using the 184 Bergers using 7977.The ladder load included a load at compressed 67.3 and one at 0.3gr above compressed load per the book ( reference the 180 ELDM). Now I am loaded these longer than the sammi specs at 0.010 jump.
What I didn't understand is that I had a hard bolt lift on the random chargers in the upper level. I had 1 at max charge of 67.6 compressed charger ( per book ) at 67.3 and one at below of 67.0.
Now the brass I'm using is hornady brass that has been full length sized several time, I did this because my low round count brass is loaded up.
Here is a picture of the back end, the 67.6 starts on the left. I'm wonder if the brass is just getting weak and is expanding more? I feel like I don't see any crazy pressure signs per the primers.
What I didn't understand is that I had a hard bolt lift on the random chargers in the upper level. I had 1 at max charge of 67.6 compressed charger ( per book ) at 67.3 and one at below of 67.0.
Now the brass I'm using is hornady brass that has been full length sized several time, I did this because my low round count brass is loaded up.
Here is a picture of the back end, the 67.6 starts on the left. I'm wonder if the brass is just getting weak and is expanding more? I feel like I don't see any crazy pressure signs per the primers.