My Single Six hates CCI ammo. I bought a box of Winchester .22 mag when I bought it used 15 years ago and it shot great until I switched to the .22lr cylinder. Then accuracy went to hell. A friend sold his .22 mag and gave me an almost full box of Maxi-Mags'. It started shooting patterns not groups. I thought something was wrong with the revolver until I switched back to the Winchester ammo. I got to thinking the only .22 lr ammo I had fired was Stingers. Switched to some cheap bulk .22lr ammo and the groups shrunk. The solution was simple I have not used any CCI ammo since. Has anyone else had that problem? My 10/22 handles Volicitors OK.
Jerry
Jerry