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From: harrism@aquila.rtp.dg.com (Mike Harris)
Newsgroups: rec.guns
Subject: Re: Getting Started Reloading
Message-ID: <35645@mimsy.umd.edu>
Date: 14 Jun 91 20:05:16 GMT
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In article <35604@mimsy.umd.edu>, cash@convex.com (Peter Cash) writes:
|> In article <35569@mimsy.umd.edu> nstar!bluemoon!jamaass@iuvax.cs.indiana.edu (Jeffrey A. Maass) writes:
|> 
|> #Is it necessary to trim 9mm/.45ACP brass? I'd been told that
|> #the non-rifle cases won't need trimmed.
|> 
|> I've been reloading .44 magnum and .44 special cartridges for about 2
|> years, and haven't yet had to use the trimmer I bought when I got started.
|> So I'm inclined to think that a trimmer isn't something you ought to get at
|> first--just if you notice that your cases are really lengthening.

	I hadn't noticed stretching of my cases, however, I did notice
rather large variations in the lengths of the cases between lots and brands.
I am experimenting with match prepping pistol brass (200 rounds per caliber)
for silhouette matches. For these I wanted all the cases at exactly the
same length so that they would get a perfectly consistent crimp (A heavy
crimp is necessary in my case). In addition to the case trimming I used
a Sinclair primer pocket uniformer and a flash hole deburrer on the cases.
I would agree that the trimmer for most pistol work is not necessary.

regards,

Mike Harris - KM4UL                      harrism@rtp.dg.com
Data General Corporation                 {world}!mcnc!rti!dg-rtp!harrism
Research Triangle Park, NC