If you are using your lead reloads there will be lead vapor deposits in several locations adding to the difficulty.
My revolvers are all blue so may be a bit different in needs.
I clean after almost all uses. If not many shots were fired such as testing 10 or 15 rounds of a new load, I may wait till the next outing if it will be soon. Lead can build up so after a normal 100 to 200 round outing I will scrub down pretty thoroughly.
Copper plated or jacketed bullets will leave your toy a bit easier to clean.
Coat the gun with a cleaning fluid and let it set a while. Then brush heavy deposits with a toothbrush or metal bristle brush sold for gun cleaning.
Don't load lead to very high velocities to minimize barrel leading.
Breakfree CLP works reasonably well. You might try it or Hoppes #9 if available in Italy.