I've come across lots of data that wasn't correct. Sierra mostly on overall length. Berger on 1 cartridge bullet combo was way to short. Whomever proofread didn't check the oal according to the tech I talked with. As far as Barnes goes, I have some of their bullets they don't even list on their site as components or in data. Well, their updated data doesn't, but their old book does.Barnes website has a lot of data but some leaves me scratching my head. One in particular is 308 Win. and 130gr TTSX. Powder weight and velocity don’t match if even it would fit in the case.