Primers in fired brass

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hnusz

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Have a question about the primers in my fired brass. Made it to the range Monday after Dr appointment. Took my ar and a new to me Savage 110fp in 223. The primers in the brass fired in the ar are flush with the case . The ones fired in the Savage stick out . What could be the cause. The load is twice fired mixed headlamp. 223 brass rmr 55gr fmjbt and 24grs varget. This load is accurate in my ar and cycles it perfectly. Thanks
 
hnusz said:
(Primers)- ones fired in the Savage stick out
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Non-issue if not pierced or leaking gas. Your powder charge may be to LIGHT.

The firing pin hole could be on the large side? My Savage Axis 223 has primer flow around the firing pin, into the hole with CCI 400 primers. No flow with OLD Remington 7 1/2 primers.

I will use a mag primer when available.
 
Cemetery21 said:
Or shoulders set back too far for the Savage chamber.
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That would be my first guess too. Not sure how long the OP has been reloading but that's a common ailment among new reloaders who are reloading necked-down rifle cartridges for the first time.

Dear OP (hnusz),

One thing I highly recommend is a case gauge from one of the reliable makers like L.E. Wilson or Dillon or, my personal favorite are, the multiple capability of the EGW chamber checkers found here: https://www.egwguns.com/chamber-checkers/

Other thing is, Savage rarely has head spacing problems right out of the factory box.

You didn't ream those primer pockets too much by chance did you? Are you swaging, hand reaming, using a case prep center maybe?

The brass that showed the proud fired primers .... all mixed you say? Any of it predominantly more of one than the other?

Primers all the same throughout?

PS: I have the 10FP LE in .308 (with the bull barrel) and I love the thing almost as much as I love my dogs.

DSC01595.jpg
 
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Have been reloading for about 15 years. This is the first time loading for two rifles of the same caliber. A case gauge will tell me if my sizing die is sizing the case to small? All the brass is 223 have not used any 556 yet. Here's a picture of the brass going to take them to work and measure them.
 

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It is hard to believe, but the case to chamber friction can be so high, that the case sidewalls won't stretch till pressures reach about 24,000 psia. This is according to Professor Boatwright's Well Guided Bullet blog. At some pressure level, the sidewalls will stretch, brass is ductile and used in cartridges cases to be a gas seal. But at low enough pressures, the case does not stretch, the primer backs out.

c5174Ru.jpg

This is not evil, but if this bothers you, leave a bit of lube on the case shoulder. That will break the friction between case and chamber, the case will slide to the bolt face, the shoulders will fold out, and you will end up with a stress free, perfectly fireformed case. I do it all the time.
 
Slamfire said:
It is hard to believe, but the case to chamber friction can be so high, that the case sidewalls won't stretch till pressures reach about 24,000 psia. This is according to Professor Boatwright's Well Guided Bullet blog. At some pressure level, the sidewalls will stretch, brass is ductile and used in cartridges cases to be a gas seal. But at low enough pressures, the case does not stretch, the primer backs out.

View attachment 1025805

This is not evil, but if this bothers you, leave a bit of lube on the case shoulder. That will break the friction between case and chamber, the case will slide to the bolt face, the shoulders will fold out, and you will end up with a stress free, perfectly fireformed case. I do it all the time.
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Where were you when I was trying to marry-off my daughters 15-20 years ago.

:::: sighhhh ::::
 
Measured six of each .001 to .002 difference on base,start of shoulder and neck. Brass from ar was .005 to.007 longer than brass from the savage. Here's a five shot group after getting on paper
 
hnusz said:
Have been reloading for about 15 years. This is the first time loading for two rifles of the same caliber. A case gauge will tell me if my sizing die is sizing the case to small? All the brass is 223 have not used any 556 yet. Here's a picture of the brass going to take them to work and measure them.
Click to expand...
I would try some factory ammo. If the primer backs out in a similar way I would check the headspace in the chamber.
 
What is the torque on this? Pretty sure it's not supposed to be just hand tight.
 

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I would agree with some of the ones that said the case is short but it would also mean the load is on the light side, because if the round was loaded heaver it would push the case back & fire form it to the chamber. So check your case length to the shoulder & try a little hotter load.
 
I'm confused how 24 grains of varget is a light load. Its dam near a full case for me, using lapua. Granted I'm using a longer bullet but my seating depth is no where near sammi spec. It's not a full power load but it's not a pinker per sei.
 
It's the bolt. Pulled it out last night to check firing pin hole noticed the bolt handle was loose. I'm assuming that is the bolt that holds the bolt together.
 

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hnusz said:
It's the bolt. Pulled it out last night to check firing pin hole noticed the bolt handle was loose. I'm assuming that is the bolt that holds the bolt together.
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seiko. Cam on the bolt locks it into place, so that shouldn't matter. Obviously fix the known issue but I dont think that was your problem.
 
hnusz said:
I'm confused too. The hodgdon site says 24gr of varget is a compressed load.
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It depends on what bullet you are shooting the 55gr SPR SP Hodgdon calls a max load of Varget 27.5C & a starting load of 25.5gr so if you are shooting that round you are not at starting min. load yet.
But I would get your head space checked first before something lets go & you get to eat a bolt.
 
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Slamfire - "Professor Boatwright's
Well Guided Bullet Blog"? Where?
 
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