If it tapers to the muzzle it would have to be opened quite a bit to get a parallel choke. Or, send it to Briley and they could install parallel screw chokes in that barrel. Or, maybe Mike Orlen could also do it cheaper and faster.
I don't know what shells you are using but some guns pattern much better with a little slower shells. www.rstshells.com or www.polywad.com They will get the job done.

Last edited by Patriot USA; 09/09/10 11:06 PM.
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