Hi all,

I just installed my first barrel on my 116 300 win mag.. my question is, as I see it, the headspace seems to be based on the case belt rather than farther up like i had assumed.. that being said, and assuming that those belts are of a fairly standardized size, would it be possible to set head space off an old piece of brass from the first barrel since it seems to fit in the chamber? or take the firing pin out and use a live factory round? and if i have to use a head space guage do any of y'all know where i could rent one and do i really need a no go gauge?

I know lots of questions but all of you always rock in the advice department so i wanted to know from you guys.

Thanks, Jordan