Quote Originally Posted by earl39 View Post
Everyone keeps repeating this but my LC, rem, and win brass in 308 show less than 1/2 grain difference between the three. I know different lots are different but i am just saying.
That's what I'd thought too. Some of my LC is even lighter than my Lapua brass...but it creates higher pressures. I think it's the base thickness for the machine guns (there's more pressure on the back of the case from the earlier extraction process).