Built a Spikes lower a while back and did some trading for a complete upper. Took it out and it's all over the map. No two shots seem the same. Can't keep it on paper. We put a bowling pin at 25 yards. It would hit then be left, right, high, low then who knows Where do I start with this. I will try and get some info off the barrel when I get a chance I have tried PMC and Remington ammo.