+1 about the cleaning MZ5.
I spend little time worrying about the rifles, a bore snake before shooting and that's it. The pistols are another matter. But, even there, the Ruger and the High Standard will go hundreds of rounds between cleanings. If I keep the breech end of the Ruger free of the crud ring that develops there, it is very happy.
Keep the moving parts oiled lightly.
"Only hunting and mountain climbing are sports. The rest are just games."