Ok, sometimes i have a good idea. This time I think it's the concept of always shooting two ranges (or more). Saves time and powder-maybe a LOT of time and powder.
Build frames to hold your targets that are clear of heavy obstructions (don't want to punch plywood between ranges), set targets at two ranges such that balls hit both targets. Get your 25 and 50 groups simultaneously, or any other pair or triple...go nuts.
Also, as i have thought before, one could calculate his velocity from the
observed drop on simul-targets. Of course the heights of the targets should be carefully regulated in this endeavor. But then
actual drop is all you really need to know.
I'm quite over my "need to know" every last detail (like calculated velocity or other silly numbers), but do like the idea of
double ranging the groups. Like--say you shot a one-holer at 50, wouldn't you like to see what that exact, no-flier group looked like at 100? Well now you can.