Trulock Boar Blaster Choke Tube Winchester-Winchoke Chokes Black. These Shotgun Chokes from the people at Trulock feature 5 parallel steps which gives a tighter pattern of buckshot than past models. With a new forcing cone the Trulock Boar Choke Tube is 20percent tighter at 40 yards over a typical choke. Don't rely on luck to hit your target count on a Trulock Blaster Choke Tube instead. Specifications for Trulock Boar Blaster Choke Tube: Manufacturer: Trulock Color: Black Gauge: 12 Quantity: 1 Condition: New Trulock Choke Tube K7-CB-BBCT New forcing cone 5 parallel steps 20percent tighter pattern at 40 yards Package Contents: Trulock Boar Blaster Choke Tube K7-CB-BBCT Trulock BBWIN12SPL: Boar Blaster Choke Tube for Winchester-Winchoke Chokes BLACK