Primer stayed in case , end came off

53moose320Elk

53moose320Elk

Regular
Super GunNutz
Rating - 100%
46   0   0
Location
Kitscoty Alberta
I was depriming some 45acp brass I bought at a auction
And a couple did not want to come out of the shell holder , I lowered to depriming ram farther but no diff,
I took the shell holder out of the press and there was the end of the primer sideways ,
Here is some pics , showing the sides of the primer stuck in the case and two ends I got out of the shell holder
That cases were S&B cases, 5 did this , I deprimed 180 WW cases just before and they were all okay.
Any body else had this happen ?
 

Attachments

  • IMG_2586.jpeg
    IMG_2586.jpeg
    126.2 KB · Views: 85
  • IMG_2585.jpeg
    IMG_2585.jpeg
    146.6 KB · Views: 84
  • IMG_2584.jpeg
    IMG_2584.jpeg
    152.7 KB · Views: 84
It's not uncommon to have a primer not pop out cleanly. They sometimes rip out and leave a rim like yours but often partially rip out. Sometimes the primer gets pierced but not popped out. I've seen it a hundred times. Sometimes the crimps refuse to release the primer, sometimes the primer gets glued in from sitting in the rain. Chuck them out and keep on going.
 
I had a bunch of gunshow purchased .38 sp cases do the same thing and on close inspection found that rust corrosion of the primer cups were the cause...I suspect someone washed those cases and the moisture inside the primer pocket didnt dry, causing rust that weakened them at the curve.
Bear is right, I removed a few with an easy-out but soon made up my mind it was a waist of time for what used brass was worth at the time. ( I think I paid $50 for 5 gallons)
 
I have only used S&B brass in 22 Hornet and not experienced this as of yet.
I assume it may bite me in the arse , but not worried/concerned as I would just toss it aside (primer stuck in case) and move on to the next one.
As mentioned by bearhunter I might try an easy out if the brass was of exceptional quality though...then again maybe not.
Thanks for sharing the experience.
Rob
 
S&B tend to have tighter primer pockets than North American cases do, I’ve prepped a fair amount of S&B pistol cases the last couple of years. Mainly 9mm and .40s&w and you can tell when decapping as the primers feel tighter when you push them out, so this doesn’t surprise me. Can’t say I’ve had it happen though, I’d chuck em if it’s only a couple.
 
fingers284 said:
I had a bunch of gunshow purchased .38 sp cases do the same thing and on close inspection found that rust corrosion of the primer cups were the cause...I suspect someone washed those cases and the moisture inside the primer pocket didnt dry, causing rust that weakened them at the curve.
Bear is right, I removed a few with an easy-out but soon made up my mind it was a waist of time for what used brass was worth at the time. ( I think I paid $50 for 5 gallons)
Click to expand...

If the issue is moisture / corrosion related I would try leaving them in Kroil or similar for a little while, couldn't hurt.

OP, i believe the term most used for this type of failure is a "Ringer" (ie where the end of the primer breaks off and leaves the ring still inside the primer pocket of the case, its fairly common, so much so that some of the higher end automated presses have optional sensors to check for this type of issue)
 
Butcherbill said:
S&B tend to have tighter primer pockets than North American cases do, I’ve prepped a fair amount of S&B pistol cases the last couple of years. Mainly 9mm and .40s&w and you can tell when decapping as the primers feel tighter when you push them out, so this doesn’t surprise me. Can’t say I’ve had it happen though, I’d chuck em if it’s only a couple.
Click to expand...
Salo & Blyat are notorious for tight pockets. I avoid their brass now.
 
Yup...
7x5SCJU.png
 
fingers284 said:
I had a bunch of gunshow purchased .38 sp cases do the same thing and on close inspection found that rust corrosion of the primer cups were the cause...I suspect someone washed those cases and the moisture inside the primer pocket didn't dry, causing rust that weakened them at the curve.
Click to expand...
I'm willing to bet this is what happened except the corrosion just locked the primer in place . A friend did exactly this with the same result. Washed the cases, didn't remove the primers immediately and they corroded in place. The corrosion holds the primer in the pocket and when the decapping pin hits the primer one of two things happens:
1. the pin overcomes the friction caused by the corrosion & the primer pops out
2. the corrosion holds the primer in and less force is required to punch through the primer than to push the primer out resulting in a ringer.

Years ago Midway used to sell a tool to remove ringers. It cost about $10. Since I've probably had 5 ringers in my entire life l figured I would never encounter enough of them to recoup the cost of the tool so I just chucked the affected cases. I haven't seen the tool advertised in 20 years so I'm guessing most people felt the same as I did. It was one of those answers to a question no one asked.
 
Interesting. I estimate I've loaded close to 100,000 rounds over 40 years using alot of military brass with crimped primers and a certain amount of crimped handgun brass
and have never had this issue.
On crimped 5.56 brass, sometimes the head of the primer is noticeably bowed out from the pressure to deprime, but never had the head of a primer separate from the base.
 
ZREXER said:
Interesting. I estimate I've loaded close to 100,000 rounds over 40 years using alot of military brass with crimped primers and a certain amount of crimped handgun brass
and have never had this issue.
On crimped 5.56 brass, sometimes the head of the primer is noticeably bowed out from the pressure to deprime, but never had the head of a primer separate from the base.
Click to expand...

Much of it has to do with what the brass went through. Crimped brass that is collected right away and stored dry the primers usually pop easily. If it's been in the rain for 6 months, some get stuck in there. It happens with non crimped primers too. But it's always a small percentage. It happens, so just chuck the brass and move on.
 
53moose320Elk said:
Any body else had this happen ?
Click to expand...
Yep, had a giant batch of nickel 38 Sp cases that has a fair number of these. Also just finished a big batch of 9mm cases and had a bunch in there as well. I just chuck those cases.

IMO it is caused by corrosion between the primer pocket and the primer. I think it is a result of the empty cases sitting around unused for a long time. I know the nickel 38 cases had not been washed or exposed to water but they had been sitting in a. 20L pail for a long time.
 
I Dont Care About You said:
IMO it is caused by corrosion between the primer pocket and the primer. I think it is a result of the empty cases sitting around unused for a long time. I know the nickel 38 cases had not been washed or exposed to water but they had been sitting in a. 20L pail for a long time.
Click to expand...
Even if they had not been washed or wet it's possible that storage in higher humidity or a lack of air circulation around the bucket could give the same result. I'm guessing that there wouldn't be much air movement at the bottom of a 20L pail of brass. Even if the brass appears to be dry on the outside it's very possible that there is still moisture on the inside which could migrate to the primer through the flash hole. Something as simple as little bit of dew on the grass when it was picked up could cause problems.

I wet tumble my brass till it is really shiny so I'm always a little surprised that if I go to use it 6 mounts later it has dulled somewhat in appearance. I attribute this to interaction with the air in the storage container even though the container has a fairly tight fitting lid on it (I use old metal coffee cans) and they are stored in my workshop with a dehumidifier. It's amazing what exposure to a little bit of air or water can do to some metals.
 
You must log in or register to reply here.
Back
Top Bottom