Thanks for compliments. These days I really have to concentrate when shooting groups. I can remember when it used to come so easy. crazy
I briefly considered shooting 10 round groups but instead opted for 2 or more 5 shot groups. At some point I'll do some 10rd. groups so I can compare it to my Kimbers and the custom 581/541 of which I've shot 10rd groups. The Kimbers and the Rem. I've shot 40rd. groups and all were under a 1/2" so that will be a challenge for the CZ.
From outside to outside of the black of the black portion of the bullseye is 1.125". I almost never measure my groups, not sure why, and I almost never take photos of critters I've shot. It's only been in the last 7 or 8yrs. that I've even taken photo's of rifles I own or owned. Guess I'm just not a picture snapper.

Overall, this 457 shoots pretty decent and that makes it easier to like it.