Can you fire a 7.62x36 on a .308 rifle?

Discussion in 'Ammunition & Reloading' started by Poink88, Jun 10, 2011.

  1. Poink88

    Poink88 New Member

    Crazy hypothetical question.

    If you have a .308 rifle but out of ammo except some 7.62x36 you see laying around. Can you and will you load and fire that ammo in your .308 rifle if your life depends on it?

  2. c3shooter

    c3shooter Administrator Staff Member

    No. .308 Winchester is 7.62 x 51mm long, and the other is 7.62 x 39m long.

    Either the round will push so far into the chamber that the firing pin never hits, OR, if the extractor grabbed it and is holding it, headspace will suck HUGELY, shoulder will blow out, possibly leaving part of a ruptured case in chamber.

    ALSO- Commies measure bore diameters differently than US. THEIR 7.62 is more like .311 or .312, not .308. Higher pressures IF it fires.

    All in all, bad ju-ju. But if you want to try it- can I have your guns? :)
  3. Sonnypie

    Sonnypie New Member

    Go out to the kitchen.
    Get out the biggest, baddest knife you can find.
    There you go.
    It isn't as apt to blow up in your face. :rolleyes:

    (Walks away shaking head. Who would burn up the very last of his ammo, leaving himself with an ornate club for defense?) :confused:
  4. Poink88

    Poink88 New Member

    Bore size is probably the only reason I can understand why one shouldn't try it given this "YOUR LIFE DEPENDS ON IT" scenario where you don't care about the gun or anything else because you will most likely die if you don't do anything.

    Better to use the rifle as a club then huh? :D
  5. jpattersonnh

    jpattersonnh Active Member

    Grab the knife and run! Take the rifle also. Chances are you will find like minded people.
  6. robocop10mm

    robocop10mm Lifetime Supporting Member Lifetime Supporter

    Even though the bullet is larger than the .308 bore, the extra 12 millimeters of chamber space will allow the pressures to remain tolerable. There is a chance if sticking the bullet in the barrel (squib load) if the bullet is particularly tough (like a Chicom steel core bullet) as it will resist swaging down to bore diameter more than a lead core bullet.