[Servant of the 9]

How often to clean? A .22 rimfire can go 100 shots without cleaning. The exceptions are the .22 magnum and the .17 calibers, which should be cleaned after every 30 to 40 shots because they leave copper deposits in the bore. For center-fires, I like to clean after 20 shots. Shotgun bores should be cleaned after each use.

Fail to clean these guns and - sooner or later - they will fail you, especially the semi-automatics which need lots of TLC.

I agree with you about rifles and pistols, but I have had a number of shotguns that fired over 100,000 rounds in competition without ever being cleaned.
I have never had a shotgun fail to fire or fail to cycle with factory ammo.

So9

[coloradan]

but I have had a number of shotguns that fired over 100,000 rounds in competition without ever being cleaned.

Wow! I wonder what the gun grabbers must think of a gun that not only goes off by itself, but enters itself in competitions! Did that gun win any prizes for you?