Would appreciate your help with interpreting some ladder test data

[Bill2905]

Have you checked your scale with a Known weight piece, Weigh something youve weighed in the past and rezero scale.Have had rcbs scales in the past,minute partical of dust in pivot slot on balance beam,would clean w/small soft brush and see if that helps.Would also clean beam pivot points.Some times if it's 1 st shot out of cold clean barrel,or cold barrel,that first shot will be faster.Looks like you have a node at 23-23.6 H 322

I need to get some calibration weights as I have never done this. I will also clean the pivot points.

[Coyote_Hunter]

I've seen the same results with charges weighed on an electronic scale but in 0.5g increments. I don't let it worry me.

My standard development process is one cartridge at each powder charge with 0.5g increments for rifle loads. I record the velocity and POI for each shot and look for a string that provides relatively consistent velocity increases and close to the same POI. When I find such a string I build more using a powder charge in the middle of the string and check them for velocity and accuracy. More often than not, I'm done.