I picked one up for a friend of mine's 21" barrel 11-87. He was shooting the remington turkey/predator choke and at 40 was getting 105 in a paper plate with Mag Blend. With this choke he got 117 and with LB #4 got 115. I think it would fair well in other guns, but his gun is not the best patterning gun for some reason. That being said, 115 #4's aint bad at all. Now 117 MB, something is up with that.