Unsure if this will help anyone but for those questioning the problem with the 410 pattern i was experiencing the same thing when shooting with a bead. I quickly fixed this problem with a red dot sight(never used one before) and noticed that the pattern with plain bead was slightly to the left(stephens 410 signle shot). After shooting and tweaking the red dot sight I now have a comfortable pattern with 22 pellets in the head at 40 yards. Apex ninja 9.5 shot. I think when shooting a subgauge you have such little room for error with the limited pellets you have you have to use a red dot to get your pattern truely hitting perfect. since putting the red dot on 2 birds have been harvested at 23 then 38 yards.