I have a friend who bought a AR15 from Pro2a tactical in .350 legend. I don't know anything about that company. I have the basic knowledge about the AR platform. He is having some issues and I told him I would try to help. It will sometimes eject the shell but it's like it doesn't seat the next one and it won't fire and you have to manually cycle it. That seems like it could be a gas block issue but not sure. The other issue is accuracy? He has confirmed the scope is fine on another gun and he is shooting hornady ammo. I suggested picking up some different ammo to give a try just to start somewhere. Any suggestions?