I have a beautiful little .22 Buckmark for plinking. It's fun to shoot but does jam from time to time. I clean it as I understand the instructions to say.
Is there something I should do to make it jam less often? Probably once in 50 rounds.
A .22 is a slightly different beast than a centerfire handgun when it comes to jams in semi-auto pistols.
Best way to avoid jams in a .22 like the Buckmark is to find a brand of ammo it likes, preferably high velocity stuff, and stick with it. If the pistol jams once in a while, make note, if you have more than one magazine, if there is a tendency for the jams to happen with one of the magazines. Bad magazines are a likely culprit.
I like to lubricate with a high quality lube like Tetra or Superlube, and apply it just a little more than sparingly on the slide rails if I know I am going to shoot it a lot.
If the problem persists, you could have the feed ramp polished. If it isn't smooth as glass, that could cause problems. Also, make sure you are holding the pistol firmly enough so that you are not absorbing any of the recoil force that is needed to work the action when the weapon fires.
In most cases, a .22 is a recreational gun, and because of the soft lead bullet with the waxy coating that can build up, the very small rim of the cartridge that needs to be handled somewhat gently by the extractor (so the rim doesn't tear off or dedonate the round while cycling manually) and the lack of outlandish quality control that goes in to making self-defense centerfire rounds, and the smaller amount of energy available to cycle the action, they are a little more "jam prone" than centerfire pistols.
I have a Ruger MKII that functions perfectly with ammo it likes, but with certain brands of ammo or crummy magazines it does jam once in awhile.
In my experience, .22 (i.e., rimfire) ammo misfires much more frequently than any centerfire caliber that I've shot.