For all you Remington 870 owners who have been searching like I have for the deadly choke I think I have found the answer! First, let me share with you I spent $23 on a H.S. Strut Undertaker which after testing three different brands of ammo delivered disappointing results. I was able to try my friends Remington Extended Super-Full Turkey Choke which delivered awesome results (about 40 pellets in the kill zone) if not more? It also seemed it wasn' t " picky" on ammo either. We tried Winchester and Remington with similar results each time. I can readily recommend this choke for 870 or 870 Super Mag owners. The ammo was 3" #6' s. Give it a try! You won' t be disappointed.