Honestly when I took them out to shoot, My Sport, My Dads AR15A3 Hbar and my friends Bushmaster Patrol sumthin, I wanted to do an honest comparison, the Sport and Bushmasters both were new and the Colt was used, but the barrels all looked good. I used the same Federal XM193 5.56x45 ammo in them and had any of them outshot the Sport I would say so but they did not. They all functioned fine, no problems anywhere, I wasnt using optics I was just using the Iron's that came on the rifle and I sighted them in before I did the comparison. In doing this I thought it would take the shooters ability out of the picture and bring it to just what the rifle was capable of. The rifles are all very capable for home and personal defense. But when it comes to shooting a Prairie Dog at 250 yards only the sport was there. Honestly any of the three would make a fine Coyote rifle at 250 but the P Dog is less than 1/8 of a target and it requires optics.
This is all my opinion and doesnt matter but thanks

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Grover Oathkeeper