Strips plastic wads like a cheese grater. - Carlson's Choke Tubes Tactical Breacher Choke Tube

This choke looks awesome and I took it out for a long range session when I received it and probably went through about 100 rounds of 00 Buckshot and Slugs. I noticed inconsistent accuracy at 100 yards with slugs toward the end of my session. When I got home to clean my gun I noticed the finish on the end of the choke was coming off and the interior was filled up with plastic material from the wads. Cleaning all of this out was a chore so my next time at the range I just ran a plain, non-ported improved cylinder choke. My accuracy at 100 yards with the slugs was great again so I believe the choke was the culprit. I returned mine because I clean shotguns more frequently than I breech doors, so I decided to stick with the plain Jane choke.