In Oregon the handgun rules are .24 center fire for Bighorn Sheep, Rocky Mountain Goats and Elk. .22 center fire for everything else (Black Bear, Cougar, Deer, Pronghorn, during the firearm seasons.
Now, where is my Jennings .25 ACP Bone Collector? I got a fresh box of 35 grain Hornady XTP's to kick some Elk ass!
I seriously doubt you could reach an elk brain cavity from any angle with a .25acp. What the heck is Oregon thinking?
Maybe this is the cougar they had in mind for the .22 center fire pistol.