What's the most excessive headspaced No4 you have personally fired?

[Morning Wood]

Very early No4 has one lug (outside) not mating to the receiver shelf. It just about closes on a field gauge with a .632 bolthead. I can cut back the inside lug to make both mate, but it would need to go about .004, but this puts it closing on a field gauge by about .003. I have no hope that I can find a .636+ bolthead.

I'm sure this rifle would have been be culled at a British depot. My question, would you fire as is with only one lug mating, mate the lugs and look for long bolt head before firing, mate the lugs and fire with it closing on a field gauge, or just forget it and make a wall hanger out of it.

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