Odd stripes on bolt, what caused this?

[DaveHH]

Somehow I feel that if I didn't live in Calif I'd have an SP. Always admired what Standard Products did, the little cool tools they made and the way a gunsmith was running the show for the most part. Their high standards for barrels and willingness to fight for it.

Information

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[Patrick Chadwick]

What may be? The lines?

The bright lines are the highlights from the machining, as in Bill's example. The "flats" are the brownish bits - covered in hardened grease. Maybe this is a rifle put into long-term storage and never cleaned up properly since?

---------- Post added at 11:13 PM ---------- Previous post was at 11:11 PM ----------

Thanks Dave. She is my pride and joy

Mine too - I also have an SP.

[Bill Hollinger]

Thanks Dave. She is my pride and joy

[browningautorifle]

Glad it all worked out in the end.