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.223 Prvi Partizan Casing Failure
i-osprey
Member Posts: 46
Has this ever happened to anybody?
As far as I know, this brass is new.
I shot it out of a NHM90.
The round fired fine and when the next round was brought forward it jammed on the front half of the previous round.
Nobody at the range ever saw this happen before.
As far as I know, this brass is new.
I shot it out of a NHM90.
The round fired fine and when the next round was brought forward it jammed on the front half of the previous round.
Nobody at the range ever saw this happen before.
Comments
I shoot a s load of 556 machineguns.
AR's M16, FNC's HK's etc... No problems.
Caliber of gun & what is the ammo?
First I tried to go forward and then I had to kick with my foot backward. It then opened up and ejected.
It would have really sucked if I was depending on it in a defensive situation
I thought that maybe they were when I got them because the necks and back a bit were burnished. However, the guys at the range told me that that is how "military" rounds look.
I am new to rifle shooting for the most part so I can't really tell. I know that they came out of a sealed box that reads:
20 Cartridges
5,56x45 (M193)
FMJ BT 55gr
SB 510
MBL 0714
Lot PPU 0706-04
Is the headspace in the rifle the place where the round seats in the barrel?
How would I check it, wherever it is?
Unfortunately, I didn't keep any of the brass after this happened so I don't know what they look like.
The one that jammed up into this piece seemed to have it's primer a bit recessed and it actually had a small indention in the primer. It may have been because I pulled the trigger before I realized it was jammed but I wouldn't think it could.
I also had a few double taps with this ammo, believe it or not.
Looks like a case of head separation...except I have never seen it separate so far forward.... Usually about 2/3 of the way down. Have the cases been reloaded? Have you had the headspace checked on the rifle? You may have got a bad case. What do the fired primers look like on the cases that you have fired. Really flat.... Or rounded on the edges?
That isn't a case head separation. Don't open you mouth and start spewing crap if you don't know what you are talking about.
A case head separation happens in the first 1/2" or the case in front of the primer, and involves a catastrophic failure where gas is vented into the action. This usually damages the gun and magazine.
This is a simple case failure, for whatever reason. I would suspect excessive headspace myself. Get yourself a set of headspace gages for the 223
(GO, NO-GO, Field). insert each into the chamber, gently close the bolt. It should close on the GO, and not on the NO-GO, or Field. I suspect it closes on the No-GO and Field, which means you have excessive headspace. This condition is correctable, but you will need a gunsmith to fix it. It involves removing the barrel pin, adjusting headspace, reaming the pinhole oversize, and installing an oversized pin.
Since you are new to rifle shooting; did you clean and degrease the rifle prior to the range trip?
Was the ammo box styrofoam, or did it have a styrofoam interior?
Did you have 2 different kinds of ammo with you?
You spoke of the front 1/3 of the case being "burnished"; could it have been inadequately heat treated/annealed (looks like case colors on cowboy guns-2 different colors on necks of cases)?
Check the chamber (where the round sits when ready to fire) for debris, grease, metal shavings, and other clogs, especially up toward the front of the gun where the barrel starts; something may be collecting in there which is preventing your bolt from closing all the way. Also check the gas port, piston, and bolt for leftover cosmoline or grit.
If you find none; get the rifle's headspace checked at the gunshop (where the bullet/bolt/barrel all meet-no gaps is good).
looks like, sounds like your rifle is slam-firing. the fireing pin is most likely sticking in the foreward position causing it to contact the primer as the round is chambering. your case failure was possibly caused by the round firing before the bolt was fully closed.
slam-fireing would account for the double cycling you mentioned, also would explain why the round behind the stuck case had a partially dented primer. care to guess what would of happened if that second round had fired?
THIS IS A VEEERRRRRYY DANGEROUS SITUATION! do NOT fire the gun till this problem is checked & corrected.
you don't say if the rifle is new? used? do a Google search for factory authorized repair nearest you & have them check it out!
please repost what you find out.
Jim
I've shot a lot of Privi in my FAL wiht no issues...
Probably just one bad case - it happens...