We make this bullet ourselves. It is still in development so there may be some variances from lot to lot. We have pretty much gotten this bullet to where we want it. It is nearly perfect. I say nearly because city wastewater requirements mean we don’t currently have a way to polish/degrease this bullet that does not require corn cob. That means that most of these will have a little bit of corn cob stuck in the tip. We have the weight and OAL tolerances to near perfect. I’ve shot a ton of very expensive bullets that were not nearly as consistent as these. Don’t let the price fool you, these are every bit as good or better than what the competition sells at twice the price. We are currently working on a wastewater solution so we can wet polish these guys. We haven’t yet done extensive testing on the BC but you should expect about .320-.335 depending on the velocity you shoot it at. We would love to get your feedback on long distance BC.