9mm Largo.

Discussion in 'Semi-Auto Handguns' started by Winchester94, Oct 6, 2013.

  1. Winchester94

    Winchester94 New Member

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    I'm considering buying an Astra 400 in 9mm Largo and am wondering about the availability of ammunition for it?
    Also, I've heard that it can fire 9x23 Winchester, 9mm Steyr, 9mm Luger, .38 ACP, and .380 ACP. Information on that would be much appreciated.
     
  2. Gizord1

    Gizord1 New Member

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    I've heard that the Astra 400 is "multi caliber," but it can only accept about 3 different 9mm versions, and I think it can be converted to another with a chamber sleeve. I don't know about 9mm Luger (I think I read somewhere that it's too short), and definitely not .380 or .32 acp.
    Now the Medusa, that's a different story. :)
     

  3. JonM

    JonM Moderator

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    9mm largo is a lower pressure round than all of the ones you mentioned other than the 38 and 380. It also head spaces off the case mouth.

    Firing 9mm or 9x23w is pretty unsafe in that chambering. Firing any cartridge not designed for it isn't wise. The case of the 9x23w can be used to load for the largo but largo charges must be used and must be kept under 10% max charge weight due to the smaller volume of the 9x23w.

    Unless your a handloader and looking for a collectable shooter avoid it.
     
  4. Winchester94

    Winchester94 New Member

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    I've seen one of those in a video. They look awesome and seem like they'd be a great survival gun.
    Thanks for the response. :)
     
  5. Winchester94

    Winchester94 New Member

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    Thanks for the info. :)
    Know anything about factory or surplus ammo 9mm Largo?
     
  6. JonM

    JonM Moderator

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    The reason the largo is a dead cartridge is because 9mm outclasses it in a more useful size. 9mm packs more punch so militaries have gone to that over pretty much all the turn of the century .357 loadings.

    Factory and surplus are pretty much nonexistant. All supplies of surplus dried up in the 80's
     
  7. c3shooter

    c3shooter Administrator Staff Member

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  8. Winchester94

    Winchester94 New Member

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    Thanks for your help. I believe I'll pass up on it for now.
     
  9. twoolddogs

    twoolddogs New Member

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    George Nonte (for you young guys, a prolific shooter, reloader and writer in the 1960's and 70's) settled the question of the Model 400 being able to use multiple 9mm cartridges in a Gun Digest article in the 1970's. After testing all the various 9 mm cartridges, he found that only the 9mm Steyr was a viable replacement for 9 mm Largo. The 9mm Steyr and Largo are interchangeable due to the 9mm Steyr rim being slightly smaller than the
    9 mm Largo (0.008") and the operating chamber pressure is in the 24,000-26,000 psi range. He also found that some of the Model 400's with loose slide tolerances would allow the .38 ACP rim to seat and safely fire.

    Due to the larger rim of the 9 mm Largo, the Largo cartridge will not chamber in the Steyr pistol (the slide will not close)l.

    The 9 X 23 mm Winchester operates at 45,000 cup; guaranteed to dismantle a Model 400 in short order. The .38 Super operating at 36,500 psi is also not safe to use in the Model 400 even though it will chamber and fire in some with loose tolerances.

    For the reloader, .38 Super Competition (rimless) brass is available and will work for either the 9 mm Largo or 9mm Steyr pistols and the Destroyer 9 mm Largo carbines.
     
  10. batjka

    batjka New Member

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    A lot of misinformation in this thread...

    Surplus 9mm Largo is currently on sale at Sarco. They charge $190/1000 for corrosive ammo and $300/1000 for non-corrosive. Unfortunately, ammo they claim is non-corrosive is indeed corrosive, so buy the cheaper stuff.

    As far as velocities, you will get just over 1200fps from your Astra, which is on par with factory .38 Super. Don't forget that Astras are straight blowback and therefore are not nearly as strong as Star Supers, which are built like a tank. So do not fire .38 Super in them (or so they say)

    Enjoy tour Astra in 9mm Largo, it's a great caliber.
     
  11. batjka

    batjka New Member

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    Forgot to mention, Reed's Ammo sells defensive 9mm largo ammunition. I've never shot it, but their website shows some impressive results. All surplus 9mm Largo is FMJ.
     
  12. Winchester94

    Winchester94 New Member

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    Wow, thanks for all of this information. I'll look into his ammo and back into buying the gun.
    Thanks!
     
  13. batjka

    batjka New Member

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    Buy Star Super instead. It looks like 1911 and is built like a tank. They could be found for close to $200-250. Very accurate and pleasant. Then buy a couple of cases of ammo from Sarco. Savings in ammo price will pay for the gun.
     
  14. Winchester94

    Winchester94 New Member

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    Well, I am a sucker for a 1911.
    I checked out Sarco and was surprised at all that they had.
    Thanks for the info.