Measure the inner diameter with the choke removed
I have a open choke measures a little over 18mm
Well I totally missed this on my first read through of the new regulations.
It does say ANY firearm, without a choke tube in a 12 gauge will certainly measure greater than 20mm.
I suppose the Liberals will rush right out to clarify this for us...
Any minute now...
Super then bring back lead shot
Turkish Bennelli knockoff with choke out
What we supposed to use for turkey hunts, SLINGSHOT.
All 12 and 10 gauge shotguns are prohibited now!!!
12 Guage. No choke.
https://imgur.com/a/Io1WXE0
Just as a Compensator/flash hider won't count towards barrel length, I doubt a choke would count towards barrel diameter given it's not permanently fixed.
I imagine this is an oversight given that no one making the rules likely hunts and probably just did a quick search on bore diameters and saw a 10 or 12 gauge should fall just under 20mm.