sxsman1 - barring some other explaination, you can take any of the usual combinations of distance/cicle size/% of pellet count and pattern your .410 with it. You just have fewer pellets to count. But, I'm open to other explainations. I just don't see that there is a special circle size/distance for .410's. 30" circle at 40 yards: 70% = Full, 50% = Mod, 40% = IC, and 30% = Cyl/Skt #1, all ranges +/- 5% or so.