I've been shooting a factory CZ527 for the last 10 - 12 years.
I'm not sure of the round count but would guess 350-400 x
It's never done any large volume shooting.
I've only shot the discontinued BERGER 25gr. TARGET bullet over H4895 and it is soooo very accurate.
I'm sitting on about 5000 bullets which will last me past my lifetime
The last 3 shots it fired resulted in 3 dead coyotes.
Value of coyote hides has tanked so it's not going to get a lot of use.