I have a 20 gauge USH which is actually a way better tshooter than I expected and I also have a 870 youth with a thick recoil pad on it. I need two slug guns for night hog hunting. The 870 is a great shooter with old style Brenneke's and sluggers (don't care for sluggers on hogs) and at present it has a improved cylinder choke tube in place. My supply of old style Brennekes has dried up and I want to use the same slug in both guns. I want to at least have 100 yards of accuracy. I guess I will order the Carlson rifled tube after I test the Buckhammers in my improved cylinder tube.