RE: Low Recoil Loads
The low recoil loads will not cycle a semi auto rifle.
Gas operated rifles must have a specific pressure curve inside the barrel for a specific ammount of time to operate properly. The low recoil loads do not generate a pressure curve large enough or for a long enough time frame to operate a semi auto rifle.
A person could open up the gas ports and/ or use lighter weight springs and probably have one operate properly but i wouldn't mess with it if it were my rifle.
Having said that if one were to design a gas operated rifle to specifically use these low recoil loads then it will function just fine. However, there are none made.