Re: Primer strength in various calibers?
- From: Don Foreman <dforeman@xxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 31 Jul 2007 14:15:08 -0500
On Tue, 31 Jul 2007 08:47:44 -0700, Eric R Snow <etpm@xxxxxxxxxxx>
wrote:
Greetings Gundamentalists,
Roger's question about a primer only load has me wondering about
primer strength. In a .22 round there is not much primer. But it's job
is to ignite the powder. When using larger caliber rounds with larger
amounts of powder do primer loads increase at the same ratio? In other
words, if twice as much powder is used, is twice as much primer load
also used? Just curious really since I only shoot .22s
Thanks,
Eric
Some good info (in addition to Steve Lusardi's excellent post) at
http://www.cci-ammunition.com/default.asp?menu=1&s1=3
Note that there are also special military "hard" primers to minimize
slam-fires in some military pieces.
Caliber and cartridge determines primer size (large or small) and
choice between pistol or rifle. Choice between regular and magnum
generally depends more on choice of powder: some magnum charges
require more ignition. This has more to do with burn rate and powder
configuration (rod vs flake or ball) than amount of powder used. It's
best to stick with (or only vary slightly from) proven recipes, which
include choice of primer. For example, there are powders (e.g. W291)
that can produce unsafe pressures at LESS than recommended load
because they may detonate rather than burn briskly.
.
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- Primer strength in various calibers?
- From: Eric R Snow
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