Dear Shooter:
I'm trying to find this for you - I've got Remington 700 bbls in the shop but no 788 barrels.
Years ago ( I removed a 788 bbl and it had a "rubberized" coating on it and I think had finer threads than the 700.
If you intend to rebarrel either just remove the bbl, measure it up and thread one up to those specs.
Harry B.
Thanks. I was hoping that I could use one of the short chambered barrels available with Rem 700 threads to easily rebarrel my 788. I guess that it will be slightly more complicated of a rebarrel job. Again, thanks.