About slamfire

flecktarn

New member
EE Expired
Rating - 0%
0   0   0
Location
Sweden
I read some interesting treads here about slamfire on the Norinco M14. I had a slamfire on my Gewehr 43 (7,92x57) and that was not a funny thing. After that I have the full respekt of slamfire and don´t want to go through it again !!!

I have fired around 2.000 rounds with my 2 Norincos M14. Never had a slamfire. But one thing has caught my eye.

If I don´t shoot all rounds in the magasine (perhaps when i hunt) the second not fired round has a mark on the primer. A mark done by the force from the firing pin. It is not fun to shoot 2 rounds in 1/2 second when hunting deers. :eek:

The mark also apears when I load the gun as usual for hunting and don´t fire that shot. This might be something to pay attention to.

I solved it by using old Swedish surplus ammo brass from 1965-75. I take away the bullet, add new powder and seat a huntingbullet for example. The primers on that ammo is much harder and not as soft as commercial hunting ammo.

To minmize the wear of the tip on my bullets I load the rifle as this:

I lock the bolt in the back position. Put a cartridge in the chamber and release the bolt - NOT letting it go. I hold the handle and not releasing it until it is 2-3 cm from the back of the shell. Only there I let it go. This prevents the bolt forward speed and don´t cause any slamfire caused by the lack of the tension from the magazine.

Now I put the magazine in. This procedure prevent damage on your expensive hunting ammo.

I´m sure most of you alreday knew this :redface:
 
The method of holding the bolt is not the best way of resolving the problem but it is the easiest. If the firearm is for self defense the round will go off but the extractor may not engage the rim leading to a jammed weapon, but for other applications it is generally harmless.
 
I believe the standard for military primers is harder than for civilian primers. This is to reduce the chance of a slam-fire.

The M14/M1A is intended to fire 7.62 NATO ammo, not the almost identical 308 ammo. Using bullets more than 147 grains in weight may "batter" the action, and eventually damage the operating rod.
 
APG said:
I believe the standard for military primers is harder than for civilian primers. This is to reduce the chance of a slam-fire.

The M14/M1A is intended to fire 7.62 NATO ammo, not the almost identical 308 ammo. Using bullets more than 147 grains in weight may "batter" the action, and eventually damage the operating rod.
I would have to agree with fact that military primers are harder than the commercial type.:rockOn:
 
This is not a problem, it is completely normal.

I also was worried about this when I first got my hand on the m14.

Always feed the rifle from the mags and NEVER try to load single round without a mag. M14 mags slow down the bolt enough to avoid slamfire.

If you reload use harder primer.
 
I've used a chamber adapter in my M-305 ... .32ACP to load it I hold the op-rod back load the round. Then I hold the op-rod as it closes, I let the bolt down onto the round...then give it a little push and the extractor clicks into the chambered round, seems to work good. The extractor allways grabs the adapter. Why would this not work for .308 ammunition.

Nic
 
Slam fires are caused, mostly, by poorly seated primers. High primers, usually. Careful reloading eliminates the issue. I've been loading for semi-autos(M-1, M-14 and M-1 Carbine) for eons and have never had any problems.
 
Back
Top Bottom