I had a CZ 457 MTR. Best I could get out of it was 0.375" at 50 yards. I tried a dozen different "high end" ammos. Settled on Midas + I mighta got a stinker, I dunno. I was less than impressed. When I found out CZ only guarantees 15mm (5/8") I gave up trying.
My 455 was a bit better.... an occasional 0.25" Often larger.
Ended up puting a Lilja 16" bbl on the 457 and now get pretty consisent 0.30" c-t-c groups at 50 yd, with some flyers. Its for sale (repalced by a Vudoo)
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The new Bergara looks interesting. Its Rem 700 SA compatible platform,so that opens up trigger options. I'd guess you'll be waiting a wile for one to come available.
https://www.thefirearmblog.com/blog/2019/10/25/bergara-rifles-to-introduce-their-b-14-22-lr-rifle/
At $1,150 its outside the new ARA "factory" class.