I finished a new 30 Nosler a few weeks ago and I was having a lot of trouble with ladder testing. I tried N570 and H1000. Today, I switched to CCI primers and Retumbo and that seemed to be the trick. I found a node at 86.5 grains of powder and didn't get pressure until 88 gr. Really looking forward to further testing tomorrow.
Berger 215 at 3119 FPS
Berger 215 at 3119 FPS