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Re: Trapdoor Carbine Serial Number Check

Posted by Dick Hosmer on Saturday, 7 February 2015, at 5:23 p.m., in response to Re: Trapdoor Carbine Serial Number Check, posted by Pete on Saturday, 7 February 2015, at 4:26 p.m.

All barrels were DEEPLY proofed on the bottom, in the raw state, in a couple of different formats over the years, after passing the series of blow-up tests.

Around 40,000, they added the marks on the top left side. "V" for viewed (visually inspected) and "P" for "proved" which, in this case really meant "gauged". The eaglehead signified US Property. Later, around 70,000, a second "P" was added, but meaning is unclear. The upper marks were sometimes obscured by wear or refinishing.

I would think the marks were polished off, but it is possible that some old, never marked, barrels were found and used. They would have had to have their tenons rounded, but that would have been a lot cheaper than making a barrel from scratch.

Looking at the bottom proofs might shed some light on when the barrel was first made, but when looking at an SAW refurb, it is really a difference without a distinction.


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