Thread: First attempt at necking down 308 to 7mm08

Originally Posted by kiwijames

308 will always be shorter than 7-08. What brand is the brass? Lapua? As you neck down the brass has to go somewhere. In already thick walled brass its going to increase the neck wall thickness. You may need to outside turn the brass.
I too think your FL die is not stroking the brass far enough. Don't pussy around with it either, give it a good shove in the press but try to also be consistent. Use a decent lube too. I doubt in a factory chamber it will have a tight neck but you may need to outside neck turn.

It's Lake City stuff (military) that's been all prepped down to 308 specs by the guy I got it from. It's supposed to be "ready to load".

I have my die adjusted down far enough that my press touches it when it goes up. I don't think I can wind it anymore (the only adjustment on that die is the primer remover depth).

I'll have another tinker tonight and put a few more pics up.