Diameter and circumference of Partner 12 gauge barrel?

[JCM]

Hi guys,

Could someone do a quick check to see what the diameter (from outside to outside) of the 12 gauge partner barrel is at the end (before any extended choke tubes) and the circumference as well?

I'd also like to know if there is a taper from the reciever, especially if there is a point somewhere around the forearm, where the taper stops and the remainer of the barrel has the same circumference.

Thanks to anyone who can help out.  Take care,

JCM