Not sure if your shooting a 870 super mag or a mag. I shoot 3.5" Win. HV 2oz 5 shot and a .665 Madd Maxx patterns my gun and this load awesome to the point you would have to see it. 116 pellets in the neck and head area of a turkey silhouette at 30 yds, 85 at 40 and 45 at 50yds.