I've already admitted to forum members that I'm anal, so I'll go ahead and chip in on this one. If you're going to have a range session why not try to learn something specific rather than just do a lot of random shooting?

For example:

Shoot the same bullet and powder charge with three or four different sabots - at least three shots each, five is better.

Or, shoot the same bullet/powder charge and try (1) seating the bullet until it just touches the powder, (2) seating the bullet with one firm push once it touches the powder, and (3) seating the bullet as firmely as possible by really leaning on the rod. Again, three or five shots of each loading.

Or, Or, Or, Aw heck - just shoot the dang things.