I just got my new barrel for my 870 a couple days ago. I got the Rem 20in rifle sighted slug barrel with the Rem choke. I took out the imp choke and stuck in my Rem super full turkey choke. Shot it at 40 yards and only got about 3 hits in the vitals. I only got to shoot it 2 times so I really dont know what it will do yet. I have 4 other chokes and 5 different kinds of shells to try. Hopefully I cand find something that it likes. I'm hopeing that my undertaker choke and the Rem Hevi Shot shoot ok. That is really the load I want to shot I'll post the results when I shoot it in the next two weeks...