Build a More Consistent Load
At distance, a load that gives up a little speed but prints single-digit velocity numbers out-shoots a faster, sloppier one every time. The job of load development isn’t the fastest round — it’s the most repeatable one. Here’s how to reduce ES and SD, tighten vertical, and prove it with data.
Reduce ES and SD — and read them honestly
Extreme Spread is fragile — defined by two outliers. Standard Deviation uses every shot, so it’s the number to trust. Pair them with vertical dispersion at distance and you can see whether a load is actually doing its job. But both mean little over tiny samples: a three-shot SD is noise. Low SD only proves itself over enough rounds and enough sessions, which is exactly why one-day conclusions send people in circles.
That’s the case for tracking. When every session lives under one rifle — charge, seating depth, velocity with auto ES/SD, groups, and conditions — your most consistent load stops being a hunch and surfaces from your own records.
Let the consistent load surface
Track every charge and string per rifle. The low-SD load reveals itself over time.