joeyc, your thinking is correct. Thats is why cayugad mentions taking a sampling of volume measurements then weighing each charge and coming up with an average weight to be used. He used Goex as an example to better illustrate the process to come up with an actual weight for volume. This needs to be done with each powder and any increment load change. One reason why I still use the volume measurement tools for load developing, KISS mentality.

I don't see anybody claiming weighing to be the be all and all to firing good groups.It does help in load to load consistency which will reduce flyers and in turn should promote a better average.