SKS, tubling bullets???

Chopperhead

Chopperhead

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ok well I was out shooting the other day and I shot a few rapid fire stints and I ended up with 3 bullets hitting the taget sidways. now Ive shot about 300rds through it and it's never happened and It happened 3 times (that hit the target at least) out of about 100rds that day. I was shooting that Chezq stuff.

Is that normal??? Ive never seen anything like that before.
 
What range were you shooting at? Who is the maker of the ammunition and the type of ammo? Need more information before you can get an intelligent response.
 
Besides a strike on the flash hider, tumbling is normally a result of an unstable bullet. Eroded rifling, undersized or mis-shapen bullets, wrong rifling twist for the weight, or too slow a velocity are normal causes.

The Czech ammo has been dimentionally correct, and since most guns are chrome lined, rifling erosion isn't likely, nor is the wrong twist likely.

Some reports of poor primers and dud rounds have been reported with some lots.
 
Another chap on another site, reported that he took some czech surplus 7.62x39 ammo apart and found differences in powder charges of up to 10 grains with in the same box, remember this next time you rapid fire this ammo, as low powder charges could cause a bullet to get stuck in the barrel.
 
ben hunchak said:
Another chap on another site, reported that he took some czech surplus 7.62x39 ammo apart and found differences in powder charges of up to 10 grains with in the same box, remember this next time you rapid fire this ammo, as low powder charges could cause a bullet to get stuck in the barrel.
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thats sounds scary, i wonder if it actually happened.
 
ben hunchak said:
Another chap on another site, reported that he took some czech surplus 7.62x39 ammo apart and found differences in powder charges of up to 10 grains with in the same box, remember this next time you rapid fire this ammo, as low powder charges could cause a bullet to get stuck in the barrel.
Click to expand...

I've gone through 3 cases of Czech, and combined with 6-7 cases my friends have shot off, we've never had a problem.
 
Garand said:
What range were you shooting at? Who is the maker of the ammunition and the type of ammo? Need more information before you can get an intelligent response.
Click to expand...


I was shooting at 50yrds Aproximatly, and as far as ammo goes I have no idea it's that cheap Chech stuff that comes in the little blue cardboard boxes.
 
Springggggg...

Check for light firing pin strikes on the tumbling bullet's cases. If you have a light imprint, it is possible to have a faulty ignition with only part of the mixture igniting and much of the powder not burning.
Clean the hell out of that firing pin recess and check for hammerspring tension, too.
It may seem odd but one of my friends just soured his PA-63's grouping in trying to reduce his trigger weight by cutting three coils from his mainspring :eek: .
With the military 9mm Makarov round, this resulted in light primer strikes and he was everywhere on the paper, when he succeeded getting there!
Fitting in a new spring put everything back in place.
Good luck!
PP.
 
It is possible that the country of origin dumped a load of ammunition on the open market that failed to meet the proof standards of the army of that country of origin. The manufacturer could have found a defect in the manufacture of that particular lot of ammunition.

For example, in the early 90's the quality of Canadian IVI was so poor that on a couple of lots, the jacket of the projectile stripped off of the bullet as the bullet went down the bore. IVI was given permission to export military ammunition and it was dumped south of the border. Thus getting it out of the CF's hands and eliminating possibility of an in country law suit if it were sold on our open market. It went south & the Americans lapped it up as the greatest thing since sliced bread. Problem Sorted!
 
PerversPépère said:
Check for light firing pin strikes on the tumbling bullet's cases. If you have a light imprint, it is possible to have a faulty ignition with only part of the mixture igniting and much of the powder not burning.
Clean the hell out of that firing pin recess and check for hammerspring tension, too.
It may seem odd but one of my friends just soured his PA-63's grouping in trying to reduce his trigger weight by cutting three coils from his mainspring :eek: .
With the military 9mm Makarov round, this resulted in light primer strikes and he was everywhere on the paper, when he succeeded getting there!
Fitting in a new spring put everything back in place.
Good luck!
PP.
Click to expand...

that might be a tad difficult lol my sks shoots brass everywhere and i'll be damned if I could find it. especially when i go rambo lol.
 
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