Thanks for the help guys. I think I'm going to roll with the 1:8 Wylde because they have them in stock ready to ship. I don't want to wait for one custom made. I have boat loads of 77g SMK which I know will shoot well out of the 1:8 if for some reason it does not like the 75 or 80 Amax.

Granite I would hope to load them longer depending on the chamber. The reason I stated 2.40 was that the recommended minimum from Hornady is 2.390. I'll measure the chamber then load them to within a smidge of the lands depending on where it likes it.