Of the .177 Diablo pellets I have weighed for uniformity, Gamo Hunters edge out Beeman FTS pellets , and both are much better than BSA Wolverines aka JSB Exacts. Not surprising that they turn out to be very accurate. So if your air rifles shoot them well, then they turn out to be a real bargain. They are, by the way, on average, exactly the labeled weight: 7.56 grains.