Does that "field" contain coyotes or PD's?
If I'm firing a few rounds..less than 20 or so will clean when I get home. If I'm really enjoying a dog town clean whenever I feel like it but use conventional 1-piece rod, brush, jag, patches, chamber brush and bore guide, Butch's Boreshine and CLP all of which we take with us. No PDs in FL so we're more like a safari operation.
I do like both BoreSnake and PatchWorm for rimfires but ALWAYS pull the bronze brush from .17HMR BoreSnakes as lot of anecdotal evidence of folks sticking one and being unable to get out.
Have a hunting partner that runs his AR so dirty you can't believe it functions..he is also of the shoot 'em WET persuasion..doesn't seem to hurt his hit ratios.