I never clean till the action ( 10 / 22) starts to become unreliable , accuracy at this point is still highly acceptable to over 100mtrs on rabbits for me.
I run sub sonic which as we all know are dirty little buggers . Maybe every third action clean ( around 1200 - 1500 rounds ) I will drag a pull through down the barrel 2-3 times and that's it.
As Rambo mentioned a few shots are required for it to settle back down after a clean but by the time I run half a mag through it's business as normal.
The cleaning rates can vary from make to make and rifle to rifle. I have a French Unique that will flawlessly cycle a thousand rounds but the action isn't as tight as the Ruger.
Son's CZ 452 bolt starts to fail to extract after 200 - 300 rounds.
Like Rambo I am not a big fan of over cleaning and also there's a big difference between a target rifle at club level and a working rifle in rabbit infested Central Otago.
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