These, are by far, the MOST accurate Ruger Mark II pistols that I have:
When I test any newly acquired .22 Long Rifle ammunition, I first see what it will do at 35 meters. Why 35 meters? Well, I wasn't paying attention to what setting my 'range finder' was set for, so, instead of yards, my target stand is set-up at that distance.
About the only way I feel I can remove most all, if not all, of any human input from me, is to use this contraption to test .22 rimfire ammunition from my pistols:
If the ammunition I test at 35 meters proves to look like a load of buckshot hit the target, then, I don't feel any further testing at longer distances is warranted and I don't bother with that brand and style for these Rugers. And BTW, I have found that when one of my Ruger Mark II pistols like a certain .22 rimfire round, the others I have sorta like that one too.