Mokwepa: get several sheets of cardboard at least 30 inches wide set them up at various distances and examine your patterns with what ever load you plan to use. I would talk to other hunters that use shotguns for advice. thing to remember is that a sngle #6 shot pellet from either a .410 or 10 ga assuming the velocities are the same kill about the same. The more shot pellets that you have, the better your chances of hitting a bird with multiple hits thusly insuring a kill. If your finances and legal circumstances allow, use a 12 bore. But if you get close you can kill a lot with your .410 and part of being a good hunter is being able to stalk and get close. Good luck.