DLALLDER: You are going to have to include ONE more attribute to that "accuracy" question if you are going to be Hunting Prairie Dogs with said ammo!
And that very important attribute is "lethality"!
Many munitions are inherently accurate in many rimfire Rifles (and pistols) but they are very much lacking in "lethality".
I have settled on the current manufacture Winchester 40 grain Power-Points (hollow-points) as they do indeed provide a significant amount of lethality and very good accuracy in MANY of my heavy barrel (accuracy oriented!) Rifles and pistols.
Including the following Rifles of mine:
Remington 40X
Remington 541-T
Kimber 82-G
Kimber M-22 Hunter/Silhouette
Ruger 77/22 V/T
Sako P94-S
I have used the 40 grain Winchester Power-Points with much satisfaction to Hunt Prairie Dogs, Ground Squirrels, Jack Rabbits, Wild Turkey and have even killed a few large Rock Chucks recently with them.
Sadly over the decades I have witnessed a couple of people who have tried to kill Prairie Dogs with 22 L.R. ammo that may have been accurate but was not worth much in the lethality department.
Be sure to try the Winchester 40 grain Power-Points before your Hunt.
Hold into the wind
VarmintGuy