spent some time shooting them thru my 7 rem mag built by SSG , 7828ssc and a fed 215match, 5 shots at 135 yards can be covered by a nickel, shot at 400 yards in the wind 3 shots 1.1" group,,looks like there gonna shoot, i won a few boxes from berger so i ordered a few more boxes, having 4 rifles that shoot .284 projectiles, cant have enough bullets,,,