Thread: Variables affecting precision

Originally Posted by McNotty

I think charge weight and seating depth should be swapped based on Hornady data. Apparently dispersion improvement does correlate with lower (larger increment) powder charge changes. They did recommend trying a larger incremental powder reduction prior to changing bullet or powder.

That's interesting. I originally had those factors clumped together (and then separated them out) which may have kept things simpler. I guess the important takeaway is that the big 'levers' to pull, aren't necessarily the ones we have been told about (e.g. small powder/seating depth changes, chasing 'nodes' etc).

As an aside, I haven't seen much in the way of research about what measurable improvement in precision can be achieved through simply more practice at the range!