CZ 527 Varmint .223 Rem twist rate

[WaywardSon]

LGS took in a used CZ 527 Varmint in .223 Rem in a synthetic B&C stock. How can you determine the twist rate on these rifles? Nothing was clearly marked on the barrel. From what I understand, these are a toss up between 1:9 and 1:12 for this model in .223. Not looking for another 1:12 .223 bolt gun.

 

[Gohring65]

Ask them if you can run a cleaning rod thru it.

 

[carbonbased]

With a number of other CZ 527’s if they were 1:9 only if they were marked. So maybe this one is different?

Edit: the plot thickens

When did CZ change their 223 barrel twist? - Saubier.com

When did CZ change their 223 barrel twist? Small Caliber Discussion Board

www.saubier.com

I guess the cleaning rod is the way