Any gunsmith on this site have knowledge of threading fixed choke shotguns for flush mount screw in chokes? I'm looking at the old SKB 100, 200, 280 or the Browning Bss or Beretta Silver Hawk in 20 ga. I know extended choked choke tubes are a no, since there is not enough clearence between barrels. Let me know if you know a gunsmith that will take on threading a sxs. My plan is to shoot steel shot for waterfowl.
