In this video, I am shooting eight NOE-314-198-SP bullets, which weigh 200 grains, at targets 200, 300, and 400 metres. Notice the spikes in the velocity of some of the bullets. The average velocity is around 2440 fps, but some bullets flew over 2500 and 2600 fps. If anyone can shed light on this, I'd appreciate it. My load is 63-grain S361, which has a similar burning rate to H4831, a 1-grain dacron filler, and a Remington 9.5 large rifle primer. I use Hornady brass and a Lyman Gen 6 powder dispenser. Moreover, I also noticed these spikes with my monolithic bullets, although the sudden increases are not as frequent.
Richard Meissner
