Loaded up 25 rounds and went out to a spot that's 405yds this evening with the .223 and 68's. I dialed 8.5" up and missed low right, the wind was in my face and left to right. I went up 1" and over 1/2" and hit the next 24 shots.
Granted my steel is 12"x12" but 19 of the 24 rounds fell within a 6" circle and all were within 9".
For me that's not too bad.
