I just received a 1918A3 receiver kit from OOW. Been wanting one for a long time, and finally decided to pull the trigger.
I have a question regarding installing a barrel. I have a NOS HSA barrel I would like to install. When I hand tighten the barrel to the point where the shoulder is making contact with the face of the receiver, there is 25° of draw between the witness marks (in other words "a lot"). Anybody had a similar experience with their build? Is it normal to have to remove material from USGI barrels shoulder to get proper timing with these receivers?