Well, they're really not long range bullets but I measured a few bearing surfaces and weighed a few of Ronnie Cheek's 66 grain, flat base 6mm bullets and was amazed. Out of 50, there was absolutely no variation in bearing surface, and two bullets came out 65.9 grains, the rest were spot on 66 grains!! Boy, if we could get some vld's that were this good, we would be set. Lapua Scenars are up there, but not quite that good. Now if only the prairie dogs would appreciate how good these bullets are before they get turned into red mist, they might be even deader (is that a word?)!