AXSA 6.5 Creedmoor proof research barrel with EC Brake Tuner range report, used Hornady 140 ELDM load with H4350 41 gr Vel 2750, this load usually gives me .5-.7 moa depending on me. Tested today, started with a setting of zero and got about a .800 moa group. Started testing and ended at setting 5 with a .140 moa group. On the second page on the bottom I ran it again at the end to confirm and produced another .140 group. So pretty happy with this brake. Also the recoil reduction is very good, so much smoother. Best value for the money.