Ruger MK I, II, III series or the New Ruger SR22
These only have 10 shot magazines, but the MK series can come with many different lengths and types of barrels
Both are very reliable with most 22LR ammo. The SR22 can even shoot the hyper velocity ammo, is easy to take down. It also can be dry-fired. It's quickly becoming my favorite 22LR pistol. About $300 new. The MK series can be found for $200 used and are an all time favorite semi-auto 22 pistol.