I have a DPMS 24" bull 1:9. I recently tried some 75 gr A-maxes that Savtac generously donated to me and was pleased to see that they shot about MOA at 2850 fps with Benchmark powder. I was well over magazine length with them. EVERYTHING I have loaded for this gun shoots right around 1 MOA. The only difference I notice is on the chrono. What does it take to tighten these things up? I was hoping to try these A-maxes on gophers at around 4-500 yards while using 55 gr B-tips for the close stuff, but that's a small target at that distance. Is there a trick to reloading or is it in the gun itself? Thanks for any help.