Frustrating day. Second trip out with the CZ455. First time out was with a Sparrow and CCI SV. Never could get it to be consistent. Today I decided to shoot unsuppressed, and to use some Federal HV Match I bought several years ago.
It had a little higher POI which wasn't a surprise. After shooting a dozen or so rounds I all of a sudden couldn't even hit the 8" circle. Impact hole was nowhere to be found. Did that a couple shots, and finally noticed the front ring wasn't even on the rail anymore.
Probably wasted 30 rounds since it was evidently loose. Could even be the reason the last outing wasn't as successful as I'd hoped.
CZ 455 Tacticool
Bushnell 6-18X
Federal HV Match
Caldwell bipod and rear bag
Score: 10
Frustrated enough I shot one target and called it done.
Next trip out I'll go back to the CCI (now that the scope is tightened down), without a can, and see if it'll group better.