Looking for pressure signs
Started by
ctay
, May 31 2012 03:12 PM
15 replies to this topic
#1
ctay
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Posted 31 May 2012 - 03:12 PM
9.6gr HS6, 115 MG JHP, CCI SRP, Starline 38SC brass. Would you consider any of these primers flat? What else should I look at in terms of pressure signs? (BTW the purple is from Dykem)
#2
Sarge
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Posted 31 May 2012 - 03:19 PM
Those primers look fine. They are barely deformed if at all.
The first thing I look at are primers. You will know a flat one when you see it.
The first thing I look at are primers. You will know a flat one when you see it.
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#3
ctay
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Posted 31 May 2012 - 03:27 PM
ok - thanks! This was up at 181 PF which seems pretty dang hot. Gun shoots softer up there though.. 
#4
Youngeyes
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Posted 31 May 2012 - 03:39 PM
Obey Gravity! It's the Law!
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"What a wonderful world it is that has girls in it!" Lazarus Long
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#5
jdphotoguy
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Posted 31 May 2012 - 04:03 PM
Good timing on this as I'll soon be working up loads for 9MM Major and it's nice to see what I should be looking out for.
#6
Sarge
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Posted 31 May 2012 - 04:16 PM
Yep! And I have picked up some 9mm that were so flat they looked like they were one solid unit.These are what flat primers look like. Yours are fine.
http://i1104.photobu...er/IMG_1991.jpg
Kevin Sanders
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http://www.ohiochampionship.com/
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http://www.ohiochampionship.com/
"Support" class shooter and proud of it!
#7
Ronnie j
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Posted 31 May 2012 - 04:34 PM
They look pierced to me, I'd bet if they were pistol primers they'd be flat as hell . Looks like a few are flowing into the firing pin hole
#8
diehli
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Posted 31 May 2012 - 04:37 PM
They look pierced to me, I'd bet if they were pistol primers they'd be flat as hell . Looks like a few are flowing into the firing pin hole
What you think you're seeing is likely a result of the Dykem.
#9
GrumpyOne
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Posted 31 May 2012 - 04:51 PM
They are fine. If they were pierced, the edges would be flat, and the surface would be cratered.
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#10
Ronnie j
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Posted 31 May 2012 - 05:06 PM
Yeah the dychem is throwing me off
#11
superdude
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Posted 31 May 2012 - 07:56 PM
some pressure signs can be seen near the bottom of the page at this link:
http://38super.net/Pages/Factory2.html
http://38super.net/Pages/Factory2.html
sights? i don't need no stinking sights! oh wait, maybe i do.
#12
ctay
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Posted 31 May 2012 - 09:43 PM
Good link - thank you! Yeah, the Dykem does throw off the picture - sorry. On the plus it does make it easier to find my brass...
#13
felt
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Posted 01 June 2012 - 04:20 PM
While we are on the topic, how are you applying the dykem?
#14
Sarge
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Posted 01 June 2012 - 04:32 PM
Probably a marker. They make magic marker type pens as well as spray and regular ink type liquid.
Kevin Sanders
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"Support" class shooter and proud of it!
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http://www.ohiochampionship.com/
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#15
ctay
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Posted 01 June 2012 - 09:16 PM
I put the rounds in a 223 box and spray the heads with dykem. The 223 box leaves just the head exposed so it doesn't get on the sides of the round. I bought the 223 box at Sportsmans warehouse for $2...
Edited by ctay, 01 June 2012 - 09:21 PM.
#16
Aircooled6racer
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Hello:Thanks,Eric.
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Posted 01 June 2012 - 09:28 PM
Hello: Looks great to me. You could try a shorter firing pin since it has good strikes and no primer flow. Thanks, Eric
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