Unless you are using pure c**p ammo, a 22 bore does not need frequent cleaning. The chamber might have some wax buildup if using non plated bullets. I normally pull a bore snake through the barrel, one pass, and use a solvent dampened mop in the chamber. The bolt and receiver of a semi-auto can get very dirty with some ammo especially if you keep everything oiled. Excess oil causes crud to accumulate faster. Oil only enough to keep the rifle functioning.
