1. Welcome to Oklahoma Shooters Association! Join today, registration is easy!

    You can register using your Google, Facebook, or Twitter account, just click here.

7.62x51 ammo--Headstamp: LC LR 07--What is it?

Discussion in 'Military Surplus' started by ratski, Jan 21, 2014.

  1. hk33

    hk33 Sharpshooter

    Messages:
    282
    Likes Received:
    0
    Joined:
    Apr 18, 2008
    Location:
    Near OKC
    Here is the information I have

    [​IMG]
     
  2. Shadowrider

    Shadowrider Sharpshooter

    Messages:
    17,179
    Likes Received:
    2,418
    Joined:
    Jan 28, 2008
    Location:
    Tornado Alley
    Rating
    100%
    That appears to be an inspection report summary, shipping document or maybe even a label. The powder weight is probably an average of the actual samples weighed during production. Just a guess but I've done many DOD contracts in the past, just not ammunition.
     
  3. MoBoost

    MoBoost Sharpshooter

    Messages:
    4,293
    Likes Received:
    12
    Joined:
    Mar 14, 2008
    Location:
    Midwest City
    Rating
    100%
    Thanks for data.

    What's interesting, a quick search shows that it might be applicable only to that 09 run. Apparently other batches were loaded with RL15 (or equivalent) with 42.5-42.7 charge.

    OP - would you mind taking one of these babies apart, and weighing the charge and maybe post some pics of the actual powder?
     
  4. hk33

    hk33 Sharpshooter

    Messages:
    282
    Likes Received:
    0
    Joined:
    Apr 18, 2008
    Location:
    Near OKC
    My understanding is RL15 was used until they switched to 4064. I don't recall the date of the switch. I have better luck with 4064 over RL15. I use VV N140 in my match loads and those are even better.

    In my opinion it is always rifle specific.

    That is a good thought on where they got 41.745 as that always seemed odd to me.
     
  5. Sanford

    Sanford Sharpshooter

    Messages:
    3,648
    Likes Received:
    276
    Joined:
    Feb 4, 2013
    Location:
    40 Miles S. of Nowhere, OK.
    Rating
    100%
    CMP had some back in early July priced at $275 for a can of 240 rounds.
     
  6. Hump66

    Hump66 Sharpshooter

    Messages:
    4,477
    Likes Received:
    8
    Joined:
    Mar 6, 2009
    Location:
    42
    If you do the math on it, 889 lbs of powder for 149040 rounds, it comes out to 41.753891572... grains per round. Maybe they just have much better scales than what are publicly available.
     
  7. MoBoost

    MoBoost Sharpshooter

    Messages:
    4,293
    Likes Received:
    12
    Joined:
    Mar 14, 2008
    Location:
    Midwest City
    Rating
    100%
    I bet it had to do more with 20x sample average;
    take a box, dump the powder, 834.9 / 20 = 41.745
     
  8. mohammad

    mohammad New to the site!

    Messages:
    1
    Likes Received:
    0
    Joined:
    Sep 9, 2018
    Location:
    IRAN
    .30 CALIBER/7.62MM (.308) 175 GR. HPBT MATCHKING
    The projectile is 175gr Sierra HPBT MATCHKING .
    The powder is IMR 4064.
    The average charge powder 41.745 grains .
    The primer is federal GM210M .
    This ammo is perfect . I have good experiences whit LC 7.62
     
  9. rlongnt

    rlongnt Sharpshooter

    Messages:
    2,991
    Likes Received:
    516
    Joined:
    May 16, 2006
    Location:
    Green Country
    Rating
    100%
    I picked up a bunch of that and my 700 PSS absolutely loved it. I bought it in bulk for 37 cents a round from a shop that was going out of business.

    Funny I was at Academy this weekend and they had some cheap Fed LC 149 Gr M80 Ball with a date code of 79. That's some seriously old new stock.
     

Share This Page