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From: snitor!petert@uunet.UU.NET (Peter Toth)
Newsgroups: rec.guns
Subject: Re: Downloading Centerfire rounds
Message-ID: <35692@mimsy.umd.edu>
Date: 15 Jun 91 15:16:27 GMT
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In article <35665@mimsy.umd.edu> bercov@bevsun.bev.lbl.gov (John Bercovitz) writes:
#In article <35613@mimsy.umd.edu>
# uunet!clodii.columbiasc.NCR.COM!keith@cs.UMD.EDU writes:
#
##   I am curious about what would happen if I were to download a .270cal
##round from my normal 50 grns. to say...about 30 grns. Would this be a
##dangerous thing to do?
#
#You could probably get away with it for years, but enough people have
#blown up their rifles this way that it's not worth taking the chance.
#The theory of why these low-loading-density detonations happen is not
#well developed.  I think the best explanation is to be found in 
#"Pressure Factors" by Brownell, Wolfe Publishing.  c1990?
#[...]

How about: you are more likely to see this problem with "fast" powder.

The problem with the half empty case is that you get flame propagation
end to end faster than you can say "Oh #@%*!" ;^)  If it's a slow powder,
no matter, or not much; if it's a fast one, don't do it next to me =%0.

petert