3 1/2 20 gauge?

[Big Al in Nebr]

Does anyone know if you can get the 20 gauge accessory barrell reamed out to 3 1/2"??  I'm  quite sure I don't need one, but it might be fun in case Cape Buffalo get loose in Nebraska.  I plan on ordering one, and I know that Hastings / STI will rechamber and reproof it, just wondering if they will do that when I order the barrell.

[PHATINJUN]

When I checked that all out last yr at this time when they came out with the 3 1/2 I was told no. Hasting doesn't do it they have a contract with a smith that does it for them. kurt