Hi,
I know I shouldn't answer a question with a question but how often would you clean a .22, Hornet, .17REM etc, etc
etc, after every time you use it of course.
I can't understand the opinion that one should leave it for 10 or 20 or however many shots.
A clean barrel will last a lot longer than a dirty one and a non pitted barrel should be more accurate than a pitted one.
I use a bore snake after each outing on the .17s because I believe it's more important to look after the condition of the rifling in the barrel.