I have a problem with a Pattern 1913 (not a Pattern 1914) rifle that has sling swivel screws made with holes drilled in the end of the threaded portion of the screw. Apparently the factory set the screw with a punch to spread the end of the installed screw. The screw is fixed in place and I hesitate to get too rough as the screw is as new and I don't expect to find a replacement anywhere. I expect the holed screw was dropped in production because of the same problem.

Do you have any magic suggestions on how to get it out? I expect they filed off part of the screw end as I can't imagine how much force would be required by unscrewing the part, forcing the staked portion into alignment with the band thread.
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