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 Flattened primers
#135912
09/23/2013 1:47 AM
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Joined: May 2008
Posts: 370
DeerDad
OP
enthusiast
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OP
enthusiast
Joined: May 2008
Posts: 370 |
I noticed today that the primers were a little flat on my 310 grain bullets over 22 grains of h110. I was concerned about pressure so I looked at some factory ammo cases and they are the same way. Is it common for the primers to flatten a little. Instead of having the little round edge like an unfired primers it's squared off. I'm shooting a super redhawk 44 magnum.
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Re: Flattened primers
[Re: DeerDad]
#135915
09/23/2013 2:46 AM
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Joined: Jun 2008
Posts: 976
doc with a glock
old hand
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old hand
Joined: Jun 2008
Posts: 976 |
DeerDad,
Not uncommon in revolvers. Primer flattening is not a real reliable gauge of pressure in a straight walled case fired in a revolver.
Doc
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Re: Flattened primers
[Re: doc with a glock]
#135938
09/23/2013 3:53 PM
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Joined: Nov 2010
Posts: 1,101
Bearbait in NM
old hand
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old hand
Joined: Nov 2010
Posts: 1,101 |
DD,
I'll add a little to Doc's correct assessment. When a revolver (even semi) is fired, the primer can back out a little at ignition. The pressure builds, and the case is eventually slammed against the recoil shield/breech face. This will reseat the spent primer. You can test this for yourself with a primed (no powder/bullet) case. The primer can get a little beat up.
Craig
Northern born and Southern bred
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Re: Flattened primers
[Re: DeerDad]
#135944
09/23/2013 5:31 PM
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Joined: Sep 2013
Posts: 4,669
Chance Weldon
Distinguished Expert
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Distinguished Expert
Joined: Sep 2013
Posts: 4,669 |
I wouldn't worry about it too much. As long as the empty cases still extract easily, there shouldn't be an issue.
Formerly TN Lone Wolf
"We are only as strong as we are united, as weak as we are divided." - J.K. Rowling
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Re: Flattened primers
[Re: Chance Weldon]
#135949
09/23/2013 9:32 PM
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Joined: Jan 2004
Posts: 9,715
jamesfromjersey
Shootist
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Shootist
Joined: Jan 2004
Posts: 9,715 |
I wouldn't worry about it too much. As long as the empty cases still extract easily, there shouldn't be an issue.
Life member-NRA-SCI
Member-HHI #2900-HHASA #067
Colt-Ruger-Freedom Arms-and S&W Collector Assoc.s
"I have more guns then I need but not as many as I want" "Handgun hunters HAVE to be good"
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Re: Flattened primers
[Re: jamesfromjersey]
#135950
09/23/2013 9:50 PM
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Joined: Feb 2009
Posts: 830
rlb
old hand
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old hand
Joined: Feb 2009
Posts: 830 |
We like to call them "Happy Primers".
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Re: Flattened primers
[Re: rlb]
#136166
09/30/2013 8:52 PM
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Joined: Jan 2010
Posts: 3,755
johnwilliams
Shooting Master
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Shooting Master
Joined: Jan 2010
Posts: 3,755 |
ditto on the extracting easy
H.H.I.#8190 Colossians 1:17 And He is before all things,and by Him all things consist!
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