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- Path: sparky!uunet!munnari.oz.au!spool.mu.edu!agate!ames!nsisrv!mimsy!stein.u.washington.edu
- From: toby@stein.u.washington.edu (Toby Bradshaw)
- Newsgroups: rec.guns
- Subject: Re: Info on Case and Neck Turning with Forster Trimmer Requested
- Message-ID: <1hqgavINNb4m@shelley.u.washington.edu>
- Date: 30 Dec 92 16:07:03 GMT
- Sender: magnum@mimsy.umd.edu
- Organization: University of Washington, Seattle
- Lines: 43
- Approved: gun-control@cs.umd.edu
-
- In article <1992Dec29.160636.20615@ra.msstate.edu> dnewcomb@whale.st.usm.edu (Donald R. Newcomb) writes:
- #I would like to open the thread up a bit. I'm interested in turning the
- #necks on my rifle brass and would appreciate opinons on what to buy.
-
- I use a Sinclair hand-powered turner. It does the job well, but
- adjustment is by trial/error and micrometer measurement. There
- are hand-type neck turners with some form of accurate control of
- setting cutting depth. Hand turners are S-L-O-W but accurate.
- I've never used a power neck turner. I question the need for
- such a thing, because neck turning is really best suited to
- tight-neck chambers, and of limited (probably no) use elsewhere.
- If your case necks are out of round by a little, you won't
- be able to tell the difference in a standard chamber. If they're
- out by a lot, the brass is junk because of runout at the case head
- (although you still may not be able to tell the difference).
- If the thickness varies, it doesn't hurt a thing in a
- standard chamber because the necks don't touch the chamber walls until
- the round is fired anyway (unless the round has been full-length
- resized), and the bullet tension in controlled by the size
- of the expander ball in a 7/8-14 die. If you use
- a button-type neck die, the necks can be made of equal ID using
- an expanding arbor, and skipping the neck turning.
-
- The Wilson trimmer can be adapted for neck turning, and either
- tool is about 10E6 times better than the standard reloading
- equipment, but costs no more.
-
- Toby Bradshaw
- Department of Biochemistry and College of Forest Resources
- University of Washington, Seattle
- toby@u.washington.edu
-
- "A well-educated electorate being necessary to the prosperity of
- a free state, the right of the people to keep and read books, shall
- not be infringed." Should speed reading courses be restricted to
- police and military to prevent "assault reading" by citizens?
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