So my buddy just put together a bear creek AR-15 put a Vortex 3-9x40 on it and took it to the range..... This thing was all over the place . Checked the scope mounts,,, Both were tight , nothing loosened up , but the bullet strikes were all over the paper... @ 100, and @50 yds. I'd take 1 or 2 shots and they'd be respectable , the the following shots would be so far off it was crazy . I'm no Chris Kyle but I can dam sure hold a cross hair on a target @ 100 YDS.lol WHY are these impacts all over the place? Anyone???? scope is Brand new to