My son picked up a shorty. It was well within spec for NATO - but marginal for the 308 NOGO.
It's not going to be a huge deal if you are not reloading. Load 'em up and shoot away. If planning to reload, then have to decide either to neck-resize. I full length resize by choice, so that was one of the reasons I opted to change out the bolt. One thing I discovered was that I also needed to change out springs and the op-rod in my case, as the specs between the USGI and the Norc were slightly not the same. Lapping in the new bolt was also a bit of a pain as well.