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Blown primers
Posted: Sat Feb 17, 2018 5:17 pm
by carlread308
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?
Re: Blown primers
Posted: Sat Feb 17, 2018 5:18 pm
by Matt P
What action ??
Re: Blown primers
Posted: Sat Feb 17, 2018 7:27 pm
by carlread308
Tikka223sporter
Re: Blown primers
Posted: Tue Feb 20, 2018 7:09 pm
by Bigtravoz
New cases of a different manufacturer? New powder batch? Seating further into lands? Any other information you can think of?
Re: Blown primers
Posted: Wed Feb 21, 2018 8:29 am
by KHGS
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.
Re: Blown primers
Posted: Thu Feb 22, 2018 3:53 pm
by mike H
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.
Re: Blown primers
Posted: Thu Feb 22, 2018 4:41 pm
by 6.5x55ai
This info is pretty old now but I presume still accurate -
http://www.jamescalhoon.com/primers_and_pressure.php
Re: Blown primers
Posted: Mon Feb 26, 2018 3:59 am
by carlread308
Pierced primers
Re: Blown primers
Posted: Mon Feb 26, 2018 3:52 pm
by Wal86
From your limited information, pierced primers are generally an indication that your loads are too hot/ or too hot for that particular primer...
Re: Blown primers
Posted: Fri Mar 02, 2018 5:46 am
by carlread308
Thanks I'll go back to br4 primers