You are certainly welcome to your opinion but your taxes paid me to conduct professional testing of small arms and ammunition at Aberdeen Proving Ground and I was just giving you guys the benefit of my experience as a professional in the weapons testing and evaluation arena. You are welcome to ignore my experience you paid me to gain.
You have to be a Certified Small Arms and Ammunition Test Director by Aberdeen Proving Ground to conduct government small arms testing and as I understand it, only about 75 have been so certified since it was started in 1946 and to my knowledge there are only three of us retired still alive and ten still working.
I conducted the testing on the M16A1E1 for the Marine Corps in 1980/81 which was adopted as the M16A2 and I can tell you the ammo loaded with ball propellant by LC took the barrels out shortly after 4800 rounds and the same bullets loaded by FN in Belgium took the barrels to 12,000 rounds and were still in spec.That was a three gun run to 12,000 rounds each and that test shot up 244,000 rounds.
As well I hold a High Master Rating in HighPower Rifle and a Master Rating in Smallbore Prone have won three National Trophies at Camp Perry and started shooting competition in 1957 so as Rambo said, "I've fired a few shots."