Strange misfire

Anything shooting related including law and procedure questions.

Moderator: dromia

Forum rules
Should your post be in Grumpy Old Men? This area is for general shooting related posts only please.
Message
Author
Racalman
Full-Bore UK Supporter
Posts: 731
Joined: Tue Mar 11, 2014 8:21 am
Home club or Range: LPSC and NRA
Location: Berkshire
Contact:

Strange misfire

#1 Post by Racalman »

I was RCO for one of my clubs at the weekend. One of the shooters had a round that didn't go off. When he extracted it, the case came out with a fired primer and the bullet was stuck in the lands.

The strange part about it was that the case was still full of powder.

I've never seen this before. Anyone?
Maggot

Re: Strange misfire

#2 Post by Maggot »

Yes but I could not explain it either.

Suspect powder or contam powder?
kevinww

Re: Strange misfire

#3 Post by kevinww »

blocked flash hole ?
primer cleared it and pressurised case enough to push bullet out, but in clearing didn't have enough left to ignite powder.
User avatar
Les
Posts: 4561
Joined: Mon Apr 28, 2014 12:19 pm
Home club or Range: WRPC
Location: Runcorn, via Africa and parts unknown.
Contact:

Re: Strange misfire

#4 Post by Les »

+1.

The primer must have supplied sufficient energy to propel the bullet into the rifling, but the main charge didn't ignite for some reason.

Did anybody try to light a sample of the charge with a match/lighter to see if it burned OK?
Countryman

Re: Strange misfire

#5 Post by Countryman »

Les wrote:+1.

The primer must have supplied sufficient energy to propel the bullet into the rifling, but the main charge didn't ignite for some reason.

OK?
Exactly this ^

Yes, as an RCO I have seen a few of these over the years. Have stopped twice now shooters racking another one in too which would be catastrophic.

Could be contaminated powder. Oil can do this quite effectively.
User avatar
Sim G
Posts: 10753
Joined: Sat Nov 06, 2010 9:09 pm
Contact:

Re: Strange misfire

#6 Post by Sim G »

Degraded or compromised powder. Used to see this a lot when old fellas were still loading their Enfiekds with rusty tins of ICI propellants that they had kept in the shed for 30 years. Basically a partial ignition.
In 1978 I was told by my grand dad that the secret to rifle accuracy is, a quality bullet, fired down a quality barrel..... How has that changed?

Guns dont kill people. Dads with pretty Daughters do...!
Maggot

Re: Strange misfire

#7 Post by Maggot »

Sim G wrote:Degraded or compromised powder. Used to see this a lot when old fellas were still loading their Enfiekds with rusty tins of ICI propellants that they had kept in the shed for 30 years. Basically a partial ignition.
To be fair that does make sense. Primers are pretty pokey and if they don't get powder to go there is probably something wrong with it. Lionel once kindly gave me a miss fired .50 for my collection. It was that wet internally the powder was all caked.
User avatar
Blackstuff
Full-Bore UK Supporter
Posts: 7851
Joined: Sun Nov 07, 2010 1:01 pm
Contact:

Re: Strange misfire

#8 Post by Blackstuff »

I had this with some 9mm ammo that had been poorly stored. The powder granules had lost their shape when i pulled the bullets and the powder smelled 'foisty'. It still burned when i tried it though. In fact far more efficiently than i expected and i got 3" wide 3' high column of blue/green flame right in the face :oops: lol
DVC
Racalman
Full-Bore UK Supporter
Posts: 731
Joined: Tue Mar 11, 2014 8:21 am
Home club or Range: LPSC and NRA
Location: Berkshire
Contact:

Re: Strange misfire

#9 Post by Racalman »

Thanks everyone. I'll pass those thoughts on the the shooter (he was using reloads).

No we didn't think to try lighting the powder.
Gazoo

Re: Strange misfire

#10 Post by Gazoo »

Blackstuff wrote:I had this with some 9mm ammo that had been poorly stored. The powder granules had lost their shape when i pulled the bullets and the powder smelled 'foisty'. It still burned when i tried it though. In fact far more efficiently than i expected and i got 3" wide 3' high column of blue/green flame right in the face :oops: lol
Did you not do genies when you were a kid (and still do). You weren't a proper kid in Sunderland around november time if you still had your full compliment of eyebrows...... 5mith
Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest