Inconsistent bullet weights and powder charges make a big difference. Pulled some 6.5 grendel wolf military to scrounge the bullets and powder for some cheap bullets to fireform some brass and use the steel cases to make my own hunting rounds to not worry about lost brass.
The 100 gr bullets ranged from 101 down to 99.8 just from one box of 20. The powder ranged just .3 grains. It is described as a 3 moa ammo. Pull some ZQi and see how much it ranges.
ZQI is crap, I have about 500 rounds of it left and I hate shooting it because of how bad it is accuracy. Since I put my 3-9 accupower on my colt 901 I just shoot it for groups more or less. When I had my vcog on it for fun and I ran drills like I ran on a 5.56 gun it didn't matter because I was shooting off hand and shooting and moving but I need to get my loading press set up shoot that ZQI crap and figure out a good load for 168 gr hornady
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