All I was trying to get across is that octagonal rifling is a step above conventional type rifling whether it be a pistol or a rifle, the reason more guns are not made with them is the high cost to manufacture them. You will see them available soon for high end rifles, AR 15s included. As I stated before standard type rifling is fine if you like it but as soon as they become available for any of my guns, 1911s too they will be upgraded to octagonal rifled barrels. We all hated the Chevy LS motors at first too but they turned out to be more powerful and longer lasting as well. To each, his or her own.