Thread: Incremental load test anomalies

From my own experience and reading up the results of some extensive trials it seems that with mild loads velocity will increase in predictable 'lock step' with an increase in powder charge. I find that with subsonic loads using fast powders charge weight predicts velocity. But with slower burn rate powders and charges getting up towards pressure, velocity can get unpredictable. Superformance has had me wondering what was wrong with velocity drops and jumps not consistent with the charge (dannyb might remember my phoning and asking what he thought I had done wrong). Because we often start our full house load ladders just a few grains below max it doesnt allow much room before we get into the 'did I make a mistake at the scales' zone.