Thread: Incremental load test anomalies

Ok you gurus..

How often if ever, do you find in developing an incremental load test (often called a ladder), that your fastest chronoed average fps is not your heaviest powder charge?

I'm as meticulous as I know how to be, weighing each charge individually on a well zeroed balance beam scale and trickling up.

Yesterday my 3 shot average was just over 150 fps more at 3 0.5gn steps below max charge..

Possibilities:
- I'm not as meticulous as I think I am
- there is something varying at the range I am not aware of
- my chrony chrono is off
- a little pixie is yanking my chain

I have found this over time with different calibres, powders, bullet weights and rifles.

I'm no expert.

So, what is happening please?