Well,
In answer to your question, I think you are limiting your options too much.
First, is, do you want to hunt or shoot silhouettes? When I first started shooting I wanted to get barrels that do double duty, until I borrowed a friends 357 mag barrel. I soon learned that although I could shoot that 357 barrel, fairly accurate, with just casual shooting, by the time I got to the rams, in a 40 shot match, I was anticipating the recoil, and couldn't hit a thing. In silhouette shooting, recoil is not your friend!
Second thing to consider is what kind of target damage will your match director allow. If you are limiting yourself to factory ammo, about the only thing that will work will be a 38 special class round, with lead bullets, unless your match director allows all kinds of target damage. Then it dosen't matter.
Most good FP or Hunters Pistol shooters use something that has a light recoil. The 22 hornet is perfect for this. However, factory ammo will go halfway through a silhouette target so it requires you to handload and get the velocities down around 1600 to 1700 fps.
If you can't reload, go with the 22 mag and then get a 14 inch 30-30 or 7/30 waters for hunting. You will be much happier.
Sixgun