I am assembling a new bolt head of matching #0 as insurance against leaking Winchester 41 primers. The one obtained looks new of finish, and doesn't look like it will line up with the rib without some help.

I understand there was a tool for helping bolt heads fit. Have no such tool and suspect they are not common.

Asking if anyone has a preferred technique they can share for helping a new bolt head to rotate fully onto a bolt body.