Ammo Question 7.62 X 58

[Klawbohr]

I was given 2 boxes of ammo from a friend who inherited them from his grandfather.

Any help indentifying and perhaps value?

Cartridges are marked:
*FNM*7.62*58*

Thanks in advance
Klawbohr

[reincarnated]

FNM is a headstamp used by 2 different ammunition producers; Fabrica National de Municiones in Mexico and Fabrica Nacional de Municoes e Armas Legiras, Moscavode, Portugal.

My guess is that the cartridges cases are military .30-06 ammunition made in Mexico in 1958. What the loads might be is anybody's guess.

The cartridge cases might be 7.62 NATO, but 1958 is pretty early for that.

[Red October]

Any chance it could be 7.62 CETME? (Which would be dimensionally more like .308 / 7.62x51 NATO.)
Or, does it look more like .30-06?

[OR Hunter]

A picture would help. Especially if it's of the cartridge, not the box. Coincidentally, 7.62x58R would be the proper metric designation for the 30-40 Krag. Just like 7.62x63 is metric for the 30-06. Are the cartridges rimmed?

[psteinmayer]

I was pretty sure myself that 30-06 was 7.62x63 also... 7.7 Jap is actually 7.7x58. Could this be a cartridge that was chambered to feed in a Type 99? The case dimensions for 7.7x58 and US M2 Ball (30-06 or 7.62x63) are very similar... and before Norma started mass production of 7.7 jap ammo, most Arisaka shooters made cases by trimming and re-sizing 30-06 cases. Also, .30 caliber jacketed bullets are typically .308 diameter, while 7.7 (and brittish .303) bullets are .312 diameter, so technically, a .30 caliber bullet could be fired in a Type 99 Arisaka if the case dimensions were correct. Food for thought????

[reincarnated]

The Mexican Army adopted the .30-06 as standard after WW2, after they retired their 7x57 rifles & MGs. Their M1954 (Mexican) Mausers were .30-06. And I have quite a bit of FNM .30-06 brass. Most of it is headstamped "FNM" and a 2-digit year, just like the US military stuff, and uses regular Boxer primers. I think the "58" is just the year of manufacture.