I have had to deal with fire arms and weapons most of my life, anything from a .22 to a 8" howitzer. At one point in my carrier I was qualified on every thing but missiles. I have qualified on .45, 9mm, M16, A1 and A2, M9 carbine, M60, M249, M2, M109 , M110, a couple of mortar systems and others including several Soviet weapons. The best .223 I have seen is the Ruger Mini 14,IMHO. And Wally World still sells it. I will not shill, but I have owned one for 30 years.