You already have the answer but while we're talking about "Crio" chokes for your Vinci, I'd like to add just one comment.
The counterbore of all Benelli guns, Mobil or Crio choke, requites that those chokes be very thin. The threads are also at or near the muzzle. That combination can create some problems if the owner does not keep the choke tube tight on the interior shoulder in the counterbore.
Any choke can shoot loose. When chokes are threaded at the breach end, the part of the choke barrel that seats on the interior shoulder, you may get away with a somewhat loose choke but the odds are not in your favor with chokes that thread at or near the muzzle.
Gas and/or debris or even pellets can escape around the base of the choke tube and cause lots of problems. It can cause the choke to fire form to the counterbore (making hard to remove or install) or even collapse the choke tube. It can happen with any brand of choke and neither is a good situation.
I always encourage shooters using these otherwise great guns to make sure that the choke remains hand tight. Check it often, I check mine after each shot, being very careful of course not to put my hand over the muzzle.
I have owned Benelli shotguns for a long time and like them but recognize this possibility and act accordingly.
Thanks,
Clark
