Joneb, ah yes, thanks, I see that now in the books for .223 and 7.62X39, but not for .308. Do you know if it works for that?
Re the bullet weight, I want to go with the more-or-less standards: 123 for 7.62X39, 55 for .223, 150 for .308. Basically I find I do well for my simple paper-killing purposes if I emulate Federal American Eagle rounds in all my calibres. (That is TBD for the 7.62X39.) Not the best there is, but far from the worst, and they seem more than anyone else to have plain vanilla designs that work in any gun you have or will ever buy.