I hung a can on my ultra before CZ offered threaded bbls.An extremely accurate, quality rifle would be an understatement. The whole CZ line is very underrated.
Sold it in weaker money times, The only down side was cost of extra mags.
I own a TOZ-78 bolt and TOZ-99 semi russkie 22's i'd put them against the CZ's anytime.
In regards to the can questions, i also own a 77/22mag and 22lr. Shooting a bolt action rimfire suppressed is truly a work of art. ALMOST movie quiet if not more so.
Anyone up in the noco area would like to road test a few bolt action 22's suppressed touch bases with me.