Odd 7.62x39


#1

Yesterday I have bought a few 7.62x39 cartridges in a collection. And one of them looks very strange. In a photo it in the midpoint

This cartridge in the single copy and I don’t want to disassemble it. The cartridge has a headstamp “bxn 62”. I assume that someone has inserted 7.92 bullet into a usual case. Probably it was made by criminals which had no usual cartridges. But the bullet is fixed very thoroughly and qualitatively and I have doubts. It can be the early Czech experiment with subsonic cartridges?


7.62x39mm Iraqi dummy
#2

What is the measured diameter of the bullet? Does the primer on that case look original or fired?


#3

Wouldn’t the projectile then be seated deeper as it was done on other such subsonic experimentals to get the correct OAL?

Did you measure the exact diameter of the projectile? Would be important to know this.


#4

Diameter of a bullet 7.9 mm.

I have looked attentively at an end face of a case and have seen a ring scratch

I think that it was a fired case (shooting from AK). It is a pity, I hoped that it is an unusual cartridge. But what for to create such cartridge?


#5

What are the headstamps on the other cartridges…just out of curiosity?


#6

270 E
270 59
539 72
bxn 62
17 58
23 86
539 66

Cartridges are purchased in England


#7

The cartridge isn’t inserted in standard АК magazine. What weapon could use such cartridges? SKS?


#8

With they way that the neck is crimped and “scrunched” It looks like something that someone may have put together…


#9

it is hard to imagine the neck of that case fitting in a 7.62 chamber…


#10

Unfortunately I can’t see the image. Is it possible that this is a barrel test cartridge with a pointed bullet like 04 loaded?

Hans


#11

It seems that the cartridge has a different shoulder position, compared to the other rounds


#12

7.62 x 39 formed out of 7.62 x 45 Czech cases? Was commonly done in the USA. Don’t know about anywhere else. I don’t collect these calibers, but the headstamp date should tell the story. When did the Czechs start making 7.62 x 39 and when did they stop making 7.62 x 45?


#13

7,62x45
I seem to recall the latest bxn headstamp is 59.
The last production is ZV 67 seems to indicate an export contract.

7,62x39 was started with bxn 57.

From this computer I see the image. bxn never gave its 7,62x39 a colour primer seal, so the red annulus smells. Isn’t that ogive that of the NATO bullet? That could explain the heavy case mouth crimp to hold the thinner projectile. Now if the bullet is not even magnetic, …

Hans

edited once for more information


#14

Everyone seems to be forgetting that 2moutrage says that the bullet is 7.92mm. That would rule out any 7.62mm cartridges, except that the parent case may have been in that caliber. His IP asked if anyone had an idea of what his 7.92mm cartridge is. My guess is that it could be something like a 7.92 x 33mm dummy made from another case. Or, simply, something that someone put together in their garage, for some reason.

Ray


#15

[quote=“RayMeketa”]Everyone seems to be forgetting that 2moutrage says that the bullet is 7.92mm. That would rule out any 7.62mm cartridges, except that the parent case may have been in that caliber.
Ray[/quote]

7.9mm measured, what makes it a 7.62mm per designation.
A 7.92mm per designation is 8.2mm measured.


#16

It would be easy to assume the final product was a 7.62 x 39 case with a 7.9 m/m bullet seated in it except for the fact that the shoulder location is too low. The German 7.9 m/m short is based on the usual “30-06” head size but the Russian short round is twenty thousandths (at least) smaller in case diameter. Jack


#17

Ray,
I didn’t confirm that the cartridge is loaded by 7,92 bullet. I assumed it proceeding from their availability. But the subsequent measurements have denied my assumption. It is 7.62 bullet. Bullet fastening is executed very hard, but is very qualitative. I don’t want to disassemble a cartridge because I am afraid of it to lose. But without it I can’t identify a bullet. Therefore we are compelled to assume only.


#18

EOD, 2moutrage, Jack - You are all correct, of course. My mistake. My brain is trained and firmly entrenched in inches. It’s hard to break old habits, and brains.;) ;) I need to stick with things I know more about, which isn’t very many.

Ray


#19

And any hunter can tried to increase capacity of a cartridge having increased weight of a bullet?


#20

Baikal make a single shot rifle in several calibres including 7.62X39. Its not sold here in that calibre but is popular in Eastern block because the rifle is cheap and the ammo is plentiful over there. Google up “Baikal rifle” if you want to have a look at one

7.62X39 is .311 same as our .303. Could the bullet be a 174grn .303? Probably S&B? We use 7.62X39 123 grn (nominal) bullets to reload .303 either for plinking rounds or to get the velocity up to around 2900 for experimentation.

It could be somebody’s experimental heavy bullet reload from Eastern Europe (?) although quite why they would want to reload steel cases slightly escapes me. The crimp looks excessive and a bit amaturish.

A standard .308 bullet would still work but accuracy might suffer. However, a 3 thou discrepancy in bullet diameter is not going to be any more than the variations found in rifle barrels, espescially military ones, anyway.