Carlsons Long Beard 20ga Browning Turkey Choke Tube. This choke tube has been specially designed to produce the best patterns when shooting Winchester's New Long Beard Turkey loads. This new ammunition features Shot-Lok Technology that allows for the tightest patterns and longer downrange reach over any lead turkey load on the market. Pair this ammunition's capabilities with the new Carlson's Long Beard Turkey Choke and you have a devastating, gobbler-killing combination. This tom-dropping dynamic duo serves-up 10% greater penetration over standard lead shot at distances of more than 50 yards, terminal on-target performance and allows nearly perfectly round shot to be thrown from the barrel for extremely tight, long-range patterns. *No Steel Shot Larger than #4 may be used in our Turkey Choke Tubes* Carlson's Choke Tubes are backed by a LIFETIME WARRANTY and MADE IN THE USA!