Before they allowed the really strong poison in SK, we would have gopher derbies. Map of land, usually a section per team, 2 - 4 man teams, 1000 rounds of 22 per person, and a speedloader for our 10-22 nasty mags. I had 6 and it was a challenge to load and shoot fast enough, what a target rich environment! 400 - 600 per person / day for the weekend was the norm. There were that many of the damn things! After the gopher doom came out, that dropped to 75 - 100. That stuff works! But it did take the fun out of a derby. Usually kept a can of brake cleaner a bore brush and some clp handy, after a while you needed it!
In some cases we kept pellet handguns handy, as sometimes the darn things would try and run under our vehicles. One fellow found out the hard way why a pellet gun as opposed to 22.
Some damage was had. Good thing it was his jeep, not mine.
Range of shots was from 3 ft to 300 yards (223 for those, just to be a smart arse.) But 5 - 25 yards was the norm. I miss those days...….