You are a limp wristed sissy, you have not cleaned or oiled a gun ever, you are a lousy shot, you have shitty guns and you have the wrong type of bullet for the gun you are trying to shoot.
It could be anything, without more useful information. What gun? What bullet?
When you say,"target ammo" do you mean cheap shit for practice or target ammo as in semi-wadcutter style bullet? It 45acp, 185gr semi-wad is very short and has a steep shoulder, if your gun is not throated correctly it will not feed, if you have a full power recoil spring it may not drive the slide back enough for proper ejection.
Standard velocity 22's may not function some 22 pistols. Most white box ammo has worked fine for me. I shoot one or twice a week and have a couple of jams of all kinds per year. Make sure you are shooting round nose jacketed bullets only in center fire calibers, see if that helps.