Headspacing a Savage question
Sometime in the next 7-10 days UPS should be bringing me a new barrel for a Savage project.
I've been reading up on headspacing the barrel and the easiest way seems to be using a sized case as a guage and headspacing to the size of the case the die produces.
However, this will be a new cart. for me and all I have is new brass, so what I'm wondering is if I headspace off of new brass then set up my dies to just bump the shoulder after I have some once fired brass will it make a difference?
My other option is to try and buy some once fired brass, size it, and headspace from that.
Any input appreciated.
Ignorance can be treated with education, sadly there is no cure for stupidity.