SoI took my m&p 15 sport out today and put a few hundred rounds of steel cased Tula .223 down range. Once I had my scope dialed in (Nikon m-223 8x32) I was getting consistent 2 inch groups at 100 yards. I've heard that Tula ammo is notoriously inaccurate, is a 2 inch group at 100 yards good for a stock m&p 15 sport? This is my first ar. My friend has a Daniel Defense and he was consistently hitting 1/2" at 100 yards. He has a much higher power scope and a bipod. I was free handing and using my mag as a mono-pod. His trigger was also nicer. Is there anything I can do myself to lighten the trigger without spending 100+? Thanks in advance for the help.