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Bushmaster Assault Rifle: what do I have here?

Discussion in 'Sports & Outdoor Adventure' started by tensleep, May 23, 2017.

  1. tensleep

    tensleep AK Subscriber Subscriber

    Messages:
    7,052
    Location:
    Dallas Metroplex
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    I came across this rifle today and wanted opinions on it. Is it a good rifle, what about the ammunition, etc. I haven't had a chance to really research it yet, but AK people are usually a great resource for this type of thing.
     
  2. rmeade

    rmeade Super Member

    Messages:
    1,133
    Location:
    Bay Area
    Well, the internet tells all. Its a Bushmaster Model J, originally made for use by pilots shot down and awaiting rescue. The discussion is here: http://www.l1a1.com/forums/showthread.php?t=375436

    They go on to talk about the ammunition needed, as well as a 2013 market value of about 1200.
     
  3. tensleep

    tensleep AK Subscriber Subscriber

    Messages:
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    Location:
    Dallas Metroplex
    Yes, I saw that thread after I posted. Apparently there were so few made (under 2000) that parts are very hard to come by. More of an oddball collector than a dependable shooter, from what I gather.
     
  4. cgutz

    cgutz AK Member

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    3,179
    Location:
    SE South Dakota
    Is that standard .223?
     
  5. tensleep

    tensleep AK Subscriber Subscriber

    Messages:
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    My understanding is that this chamber will handle the hotter rounds and larger projectiles of the mil-spec ammunition, as well as the standard .223 ammunition.
     
  6. whoaru99

    whoaru99 Epic Member

    Messages:
    37,345
    Location:
    LoTL
    Yeah, isn't 5.56 stamped right on the side of the upper?

    Very generally speaking, it's typically suggested not to fire 5.56 ammo, or at least not a bunch, in a rifle designated as caliber .223. However, a recent article I read, backed with pressure measurements, suggested the ammo spec difference certainly isn't the only consideration.

    The individual chambers play in a lot too. While there is a 5.56 chamber spec and a .223 chamber spec (and variants on those like .223 Wylde), not all 5.56 chambers are the same and not all .223 chambers are the same. Depending the chamber tolerances, it's entirely possible you could fire a 5.56 round in a "loose" .223 chamber and have less chamber pressure than firing a .223 round in "tight" .223 chamber.

    But, in your case, 5.56 is the correct ammo. There is little point to shoot .223 in it unless maybe you were hunting and wanted more of a hunting style/controlled expansion bullet. As for plinking, 5.56 is usually cheaper for the run of the mill 55gr FMJ than for .223. Also, hard to say if that would have the faster twist barrel to properly stabilize the 62gr or heavier bullets.
     
    Last edited: Jun 21, 2017 at 11:53 PM
  7. rnorton

    rnorton Super Member

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    Semi-auto, therefore not an 'assault rifle'.
     
    John James likes this.

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