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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!darwin.sura.net!haven.umd.edu!mimsy!cbnewsb.cb.att.com
- From: osan@cbnewsb.cb.att.com (Mr. X)
- Newsgroups: rec.guns
- Subject: Re: Soldering and Barrel Hardness
- Message-ID: <1992Dec30.234413.7844@cbfsb.cb.att.com>
- Date: 31 Dec 92 01:26:04 GMT
- Sender: magnum@mimsy.umd.edu
- Organization: Twilight Zone
- Lines: 29
- Approved: gun-control@cs.umd.edu
-
- In article <A86D3C27487FC0249F@VXC.UNCWIL.EDU> PATE@VXC.UNCWIL.EDU (BILL PATE, ADMIN. SERVICES, PATE@VXC.UNCWIL.EDU) writes:
- ##> draw the temper out of the steel, which will leave it 1/2 hard at
-
- #I was not aware that barrels were tempered or even very hard. If they were,
- #I think they would crack under the pressure surge of firing. Barrels bend very
- #readily, which further leads me to believe they are not hardened and
- #tempered like tools. A file will skate across a hard tool without cutting,
- #but a barrel can be filed quite easily.
- #
- #I think the heat distortion would be a problem, however. Just my $.02.
-
-
-
- Eek... how embarassing... I was under the impressin that the bores
- of some guns were hardened to some degree. Shows you what *I* know
- about the metallurgy of firearms (a fact that gives me great cause
- to be ashamed).
-
- HOWEVER, I read an article in last month's American Rifleman about
- a double rifle conversion made for a 28 ga. shotgun and in it the
- author described the process of aligning the barrels. They
- mentioned that after about 4 or 5 reheats, they left well enough
- alone to avoid damage to the barrels. I ASSumed that too many
- reheats would draw the tempet from the steel. Since this seems
- not to be the case, is the issue one of distortion or is it
- something else?
-
- -Andy V.
-
-