Blown primers

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carlread308
Posts: 9
Joined: Tue Dec 03, 2013 11:21 am

Blown primers

#1 Postby carlread308 » Sat Feb 17, 2018 5:17 pm

Hi just wondering why im starting to blow primers, using cci 400 , didnt have the same problem with br4 primers , is my load to hot or just soft primers?

Matt P
Posts: 1290
Joined: Mon Nov 14, 2005 8:22 pm

Re: Blown primers

#2 Postby Matt P » Sat Feb 17, 2018 5:18 pm

What action ??

carlread308
Posts: 9
Joined: Tue Dec 03, 2013 11:21 am

Re: Blown primers

#3 Postby carlread308 » Sat Feb 17, 2018 7:27 pm

Tikka223sporter

Bigtravoz
Posts: 109
Joined: Sat Apr 22, 2017 7:43 pm

Re: Blown primers

#4 Postby Bigtravoz » Tue Feb 20, 2018 7:09 pm

New cases of a different manufacturer? New powder batch? Seating further into lands? Any other information you can think of?

KHGS
Posts: 631
Joined: Thu Oct 20, 2005 12:46 am
Location: Cowra NSW
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Re: Blown primers

#5 Postby KHGS » Wed Feb 21, 2018 8:29 am

carlread308 wrote:Hi just wondering why im starting to blow primers, using cci 400 , didnt have the same problem with br4 primers , is my load to hot or just soft primers?


More info needed, Tikka model, pictures of "blown" primers, bullet weight, would all help!!!
Keith H.

mike H
Posts: 535
Joined: Mon May 08, 2006 5:34 pm
Location: JUNEE NSW

Re: Blown primers

#6 Postby mike H » Thu Feb 22, 2018 3:53 pm

carlread308 wrote:Hi just wondering why im starting to blow primers, using cci 400 , didnt have the same problem with br4 primers , is my load to hot or just soft primers?

As far as I know,the Br4 primers have thicker metal in the body compared to the CCI 400’s,25 thousand of an inch to 20 thousand of an inch.To me,the term blow primers means primer pockets expanded in the cartridge case and primers falling out.Is this happening ? or are you getting blanked or pierced primers.

6.5x55ai
Posts: 176
Joined: Mon Mar 18, 2013 4:21 pm
Location: Waikato NZ (Ex Tyabb)

Re: Blown primers

#7 Postby 6.5x55ai » Thu Feb 22, 2018 4:41 pm

This info is pretty old now but I presume still accurate -
http://www.jamescalhoon.com/primers_and_pressure.php

carlread308
Posts: 9
Joined: Tue Dec 03, 2013 11:21 am

Re: Blown primers

#8 Postby carlread308 » Mon Feb 26, 2018 3:59 am

Pierced primers

Wal86
Posts: 146
Joined: Sun Nov 20, 2016 5:10 pm
Location: Kilmore, VIC

Re: Blown primers

#9 Postby Wal86 » Mon Feb 26, 2018 3:52 pm

From your limited information, pierced primers are generally an indication that your loads are too hot/ or too hot for that particular primer...

carlread308
Posts: 9
Joined: Tue Dec 03, 2013 11:21 am

Re: Blown primers

#10 Postby carlread308 » Fri Mar 02, 2018 5:46 am

Thanks I'll go back to br4 primers


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