Current cleaning routine is two wet patches, then four strokes with a brush, two more wet patches and at least three dry patches.
I use a Dewey rod 0 0.187" O.D with an AccuPro 22cal Pro Jag (with O-ring), a bore guide sold by Vudoo or Bore Tech, Pro Shot 1 1/8" round patches, Pro-Shot brass core, bronze bristle rifle bore brush ... I use Bore Tech's Rimfire Blend on wet patches.. I also use ProShot Gold-Pro lubricant to lightly grease backside of lugs and I'll occasionally disassemble the bolt to oil wear surfaces.
I clean the bore after each target in competitions but may shoot up to a hundred rounds in practice. I haven't noticed accuracy drop off near the hundred round mark.
Beware of combustion/lead or carbon ring build up that will rob accuracy. Bore Tech's C4 Carbon remover when you suspect CL ring build up.
Remember, there's about as many cleaning protocols as there are rimfire shooters ...
A clean barrel is a happy barrel ... you be the judge!
Hello
On a SHILEN Ratchet 22lr barrel I use a DEWEY rod of 0,187" with a spike tip and a 1 1/8" diameter patch
I had a rod support made whose bore is the same size as the DEWEY rod, this support fits into the guide that is housed in the place of the mobile breech.
the advantage is that I am perfectly centered for the entry in the stripes.
I use 3 dry patches to remove the combustion soot and then a patch soaked with
triple action oil solution Iosso (I find that the patch is more colored than with the rimfire), then a single stroke of bronze silk brush (without going back and forth).
then I put x patches to obtain a white patch and with a felt cylinder coated with
Gun oil at the end of the stem I just go back and forth. and that's it
I did a vision test with borrescop after removing the soot and unplumbing, the aspect is perfect the entrance of the scratches does not carry traces of carbon
the aspect lapping of the surface of this barrel is perfect (currently this barrel has fired about 2000 rounds).
I can shoot 4 cards without cleaning and without noticing a change in accuracy.
My ammunition is exclusively LAPUA X ACT /M+ as I have already explained I select my batches by trying at home at 30m in indoor judging on the roundness of the grouping, I do not select the clovers nor the oblong holes.