Your decision should be driven by the intended purpose of the gun.
The SR-22 is a completely different type of handgun than the other three you mention,,,
I have always felt that it's purpose is to act as an inexpensive to shoot trainer for a centerfire duty gun.
The other three are essentially the same guns,,,
They are all single-action target/small game guns,,,
Those three pistols are more precise shooters than the SR-22.
It's the fact that they have a longer sight radius which makes them easier to aim,,,
And their single-action only triggers are more suited to precision shooting.
If you want a gun with which to train for self defense, get the SR-22,,,
If you want a gun to shoot targets and/or hunt small game with, get any of the other three.
I own a SR-22 and it's my best pistol for introducing newbies to shooting,,,
The DA/SA trigger, external hammer, and de-cocker allow me to teach almost all aspects of handgun shooting and safety.
But when I want to punch holes in paper and hit the bulls-eye,,,
I always grab my 22/45, my MK-III, or my Buckmark.
Aarond
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