I think what we really need is some rounds built for the AR15 frame (maybe with some modification) that are truley effective deer rounds. Yes I know the 223 with the right bullets will do it as will the 300Black Out and 6.8SPC but in honesty they're all on the small side. The AR10 frame is so big and heavy that it's not nearly as handy as the AR15 frame.
Some company needs to take this by the horns instead of just making the same thing that 50 other companies are making right now.
