I’m not a big CCI-SV fan but if you just shot one group after shooting another type of ammo your rifle may not be “adjusted” to the difference. When switching ammo I typically have to shoot several groups before my rifle will settle in with that ammo (lubes can play havoc on accuracy until settled in).....,just my two cents worth. I like the 457 so far and really the 455 is the only CZ .22 that I’m not fanatical about - it’s not bad but I like ALL the other variations better.
PennDog
