bad primers or Other?

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regulate34

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Ok so I have had some issues with Failure to Fire.

now at 3 In my 375Ruger
had one in my 243win.

the one in my 243win are CCI BR2. I re-chambered and it fired. Fluke?

The 375ruger is using CCI 250M primers
I am not sure if its a fireing pin issue.
somthing i have done wrong?
bad primers?

All primers from the same box (CCI250M). 3 "duds" over aprox 400 rounds fired.


I am using the same CCI 250M in my 30-06 trouble free

Primer pockets are all the same depth.
could I be seating the primer too hard?

what do you think



 
pull the anvil out and use a long BBQ lighter to light the priming compound on fire. i'm going to bet the primers weren't seated deep enough. it is definitely possible that they were duds though.
 
regulate34 said:
How would not seated deep enough cause this ?
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if it's not seated deep enough when the hammer hits the primer it will push the anvil in the primer forward and not ignite the compound. the primer will seat a bit deeper but not go off because it didn't hit the anvil while it was against the primer pocket. i've had this happen with my 500 mag and have seen it happen with my buddies 40's.

that's my theory anyhow and my experiences.
 
Intresting.
I thought the opposite. Maybe the primer was punched too deep causing weak fireing pin strikes.

I apply firm pressure when seating.

I dunno.
 
i haven't had it happen that i can recall, but if you really mashed the primer in the primer pocket i could imagine the anvil pushing through the priming compound and touching the primer cup. when the hammer hits there wouldn't be any compound to be set off as it's pushed out of the way.

again, my theory but not proven that i'm aware off. i seat my primers just below flush.

i wouldn't put to much thought into the bad primers unless you keep getting them over and over.
 
I wasn't overly conserend with the issue. Until it didn't go bang on a coyote.
Then I got to thinking. If that was a moose or big buck It would really suck.
 
It looks like You have Good firing pin strikes. I would make sure they are completely seated. I would also maybe try different primers some guns don't like certain primers. Also how are You handling your primers I have been told and read that oil from your fingers in the primer can cause this also but it has never happened to me. I am very careful handling them. My guess is it isn't that I would try different primers first.
 
Buy the look of those strikes on the two primers you displayed I would get new primers. they were hit hard enough . one of my best friends has some CCI large pistol primers and I know these are rifle primers but he is now useing them else where due to the fact they are'nt working properly . I read somewhere Ganderite said Winchester primers are the hottest .

I know or should I say I have head Federal primers Detonate the easiest. did you clean the primer pockets ?? but I'll bet you a beer even if you did clean the primer pockets you will still have problems. CCI makes Milspec primers also but as I said with the way they were hit by your fireing pin they should have gone off . put them aside for target shooting - don't bet your life on them . JMO
 
You can't seat a primer too deep, no matter how much pressure you exerted, unless your priming tool is seriously buggered. Not deep enough is common - if it goes off on a subsequent try, that or the Ruger's striker force is almost certainly the cause (they are fine in the 30-06?).

CCI primers are not "known to be unreliable". The fact that you've had four malfunctions and most (myself included), have had zero that can be blamed on the primer, points to seating errors or weakish firing pin spring, not faulty primers IMO.
 
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Swap to federal 215s and your problem will likely go away. Federal primers are sensitive, hot and have soft cups. CCI primers are mild and the cups are hard. Throw a big case of slow burning powder and some cold weather and the chances of misfires increases. Add a 5 dollar spring that got tired and/or cold weather making the strike sluggish and it gets worse. Keep piling on the straw and the camel crumples.

Ever notice that whenever there's a misfire thread there's a CCI primer or a savage rifle involved?
 
Get some different primers. I had problems with CCI large rifle magnum primers failing to light a case full of powder. It would work with a different powder in a different rifle. Primers are only 4 or 5 bucks a hundred.

Edit; you could save the suspect primers for the rifle/load combination where they do work and get some different primers for the ones where you had trouble.
 
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Are you seating them all the way? I was getting a bunch of ftf then I figured out they were not seated all the way. Never had a problem since. Shot thousands of cci primers. Also its the only brand of primer I have used. Other then my screw up I see no problems or need to change.
 
Two different rifles sort of rules out firing pin issues. I am thinking primers are not seated deep enough, 3-5 thou, is normal. A high primer when hit by the firing pin may not go off but will seat primer deeper, try to fire it again it will go off as the primer is seated better. A dirty primer pocket can contribute to this.
I use magnum primers in hunting applications but my precision rifle in 300WM uses regular federal match primers and light off near 80grs of H-1000 and at -20c no problems with ignition or accuracy.
 
I was in at Delselin (sp?) gun shop in Vernon. He said that he would bet it was not the primer. He explained to me a few things.
Sold me a proper primer pocket tool. Instead of using a small screw driver.

Bought another brick of cci250. Gonna give it a shot.
Would not be suprized if I am the issue.
 
regulate34 said:
I was in at Delselin (sp?) gun shop in Vernon. He said that he would bet it was not the primer. He explained to me a few things.
Sold me a proper primer pocket tool. Instead of using a small screw driver.

Bought another brick of cci250. Gonna give it a shot.
Would not be suprized if I am the issue.
Click to expand...

Keep us posted..
 
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