By volume in 5gr increment is fine for hunting purposes.

For serious target shooting:
For match-grade accuracy, then first find the most accurate average volumetric load and then weight it.

Then you can further fine-tune the load by single grain weight measurements around the vicinity of your average volumetric load.

But, never start out measuring loads by weight without first verifying the volume load that is most accurate within the loading limits of your given rifle.

M2C

Tahquamenon