Question on WWII M1928A1 barrel installation

[Planejack]

I have a question pertaining to tolerances on wartime WWII M1928A1 barrels & receivers.   Was there a particular tolerance in terms of the top surface of the receiver to the top surface of the barrel once inserted?  In other words…do you ever see original WWII built M1928A1’s with the top of the barrel height, sticking above the top of the receiver surface, say .010-.020”?

[reconbob]

    I never saw this, but if the barrel is original (Savage S or Steven’s square S) with the proof P at top dead center I would figure could be result of wartime production. Measured the diameter of the barrel. It should be 1 inch.

Bob

[Planejack]

Just wonder if the machining of the receiver…or final Blanchard Grinding (?) went a bit lower?

[TD.]

Planejack,

I have never seen this either. Can you post a few pictures?

Thanks!

[Planejack]

I will ask him to provide me with pictures 

[reconbob]

The height of the receiver should be 1.430”. If there is a step and the barrel is the correct 1.00” diameter and the receiver is the correct 1.430” then the next thought is that the hole for the barrel is drilled a little too high.

Bob