Muddy05
It will shoot Short's , Long's and Long Rifle ammo with no problem at all , mine likes the Remington shorts very well , they are my rainy day basement rounds when Mama is not home .
It also does well with the CCI Stingers and I use them for tree rats in the fall after the leaves are down .
Some barrels will shoot some of the 22 ammo very well and others look like a shotgun pattern , It will tell you what it likes , so you may have to try a few diffrent brands & types till you find the sweet spot .
stimpy