Thread: Why plateaus in velocity graph

I’ve done it on heaps of rifles. Most of the time it works just fine. It gives you a pretty good idea of where to concentrate your 3 or 5 shot groups at the desired velocity depending on case pressure. You can also find your max pressure. Keep going till primers flatten and velocities usually peak then decrease 20 FPS. Adjust seating depth to increase accuracy. Not all nodes give good es. Or accuracy. Some people shoot 2 at each charge. You still get the same idea. It’s about speeding up simplifying and using less rounds for load development. I’ve found more often than not 1/2” or less single digit SD loads in 10-12 rounds. And tweak from there.