Agree with Contender and Wil Terry on superb accuracy potential of the Ruger, with my preference the MK II. Intrinsic accuracy is more a matter of the individual pistol than barrel length. For small game, longer barrel means longer sight radius and higher velocity. I love the balance of the 5-1/2" bull, and greatly like the 6-7/8" bull as well. Unless you're shooting old school silhouette with iron sights, the 10" fairly begs for a good scope.
The MK II (10-shot mag, bolt catch) represents improvement over the original MK I with 9 rd mag and without bolt catch.
The MK III complicates matters with magazine disconnector and loaded chamber indicator. Any lawyer with half a brain should know that a loaded chamber indicator NEVER takes the place of MUZZLE CONTROL.
I like the heal clip magazine catch of the MK I & MK II----secure with all holsters.
The plastic frame .22 auto I cannot abide, as it is top heavy, with a predilection to dance when I squeeze the trigger. The grip feels cheap and resists my hand. I desire accuracy from a .22, and the Ruger with phony 1911 plastic bottom won't let me have it.
David Bradshaw