Nomercy, I pretty much did the same as you with the twins. They both love their AR15's in 6.8spc. Dad started them out with our old .243 but they quickly grew into the AR world. They don't hunt in this state currently but they go to a few others with me. As far as that .410 goes, I still use one to hunt over my Beagle hounds. Whole lot less chance on dusting one of the dogs noses. Love my dogs, not to mention the cost and time training a new one if you make one gun shy and not wanting to hunt.