I bought 20 cases from Bell to try them out... the max deviation in weight was only 1.6 grains. That's much better than my Lapua brass, but the Lapua brass has a drilled flash hole, chamfered neck, and is about 10 grains heavier. BeLL has received mixed reviews, however, they manufacture the Lazzeroni brass that many brenchrest shooters consider to be among the best.