It's looks like you been around here a long time. Are you new to Ar's? anyway the Tula stuff was meant to shoot at people not paper. It is the most produced ammo in the world and used in 90% of armed conflict around the globe. Not accurate and the steel case stuff expands when discharged but doesn't shrink back like brass does, So your extractor will soon give up on you, it doesn't like pulling steel cases out of the chamber. AK's are built to shoot steel case ammo, not so much the AR's. If you want to shoot "cheap steel case ammo" get a Ruger Mini-30, they are a blast to shoot and will eat that stuff up.