Carlson's Choke Tubes TSS .410 Bore Browning Invector Long 1.9" Flush Choke Tube TSS Turkey Choke Black. The Federal Premium's Heavyweight TSS Turkey Load has an incredibly high pellet count in both 7 and 9 shot along with the ability to carry energy further makes them ideal for .410 20ga and 12ga. Tungsten Super Shot (TSS) has a 22percent heavier density than heavyweight shot and a 56percent heavier density than traditional lead shot. It puts the maximum amount of pellets possible in a 10 circle at 40 yds. The Heavyweight TSS shells will include the FliteControl Flex wad that gives hunters the ability to shoot any choke tube they prefer. Long-range turkeys don't stand a chance. No Steel Shot Larger than #4 may be used in Carlson's Turkey Choke Tubes Specifications for Carlson's Choke Tubes TSS .410 Bore Browning Invector Long 1.9" Flush Choke Tube: Manufacturer: Carlson's Choke Tubes Color: Black Fabric/Material: Heat-Treated 17-4 Stainless Steel Gauge: .410 Choke Tube System: Browning Invector (Standard) Choke Type: TSS Turkey Gun Make: Browning Quantity: 1 Country of Origin: USA Features of Carlson's Choke Tubes TSS .410 Bore Browning Invector Long 1.9" Flush Choke Tube Extended Choke Tube Blued Finish For use with all lead Hevi-Shot TSS Bismuth and Steel loads #4 or smaller Fits .410 Short Invector choke systems (1.5" flush mount chokes) Package Contents: Carlson's Choke Tubes TSS .410 Bore Browning Invector Long 1.9" Flush Choke Tube Carlson's Choke Tubes 38032: TSS .410 Bore Browning Invector Long 1.9" Flush Choke Tube TSS Turkey Choke Black