I am rebarreling a Tantal for a customer using a Bulgarian barrel reprofiled to suit. I made a rookie mistake and assumed the barrels would be as specced on the prints, where both barrels are the same diameter at the trunnion end.
Not the case as the Bulgarian barrel is about .003" smaller than the print call-out. So rather than a press fit, its more of a tight sliding fit into the Tantal trunnion.
I find this out after the barrel has been re-profiled and parkerized. Not very smart, I'm afraid.
My question is this: Can i chemically retain the barrel (red locktite) at the proper headspacing to then drill the barrel pin? Or a light knurl on just the portion hidden by the trunnion, then the locktite?
So my gut tells me this receiver should get a Bulgarian trunnion installed but that will run the cost up beyond the value of the firearm for the customer as there will be a refinish involved as well as the cost for the trunnion and possibly the bolt.
Thoughts?