5.45x39 ballistic info.

Discussion in 'AR-15 Discussion' started by Nathantc, Oct 17, 2011.

  1. Nathantc

    Nathantc New Member

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    im planning a build so i figured i would share this info with any one who is interested


    5.45x39

    Velocity in ft/sec
    Distance in meters
    0 = 2970
    100 = 2673
    200 = 2340
    300 = 2056
    400 = 1792
    500 = 1508
    600 = 1310

    Wind Drift for 10mph at 90 deg.
    100 = 1.2in
    200 = 4.3in
    300 = 9.1in
    400 = 20.5in
    500 = 34.3in
    600 = 52.8in

    Bullet drop in inches
    Zero at 100 meters (sight set at 1)
    50m = 0
    100m = 0
    150m = -1.2
    200m = -3.9

    Zero at 200 meters (sight set at 2)
    50m = 1.2
    100m = 2
    150m = 2
    200m = 0
    250m = -3.9
    300m = -9.8

    Zero at 300 meters (sight set at 3)
    50m = 2.4
    100m = 5.1
    150m = 6.7
    200m = 6.3
    250m = 4.3
    300m = 0
    350m = -6.7
    400m = -16.9

    Zero at 400 meters (sight set at 4)
    50m = 4.3
    100m = 9.4
    150m = 13
    200m = 15
    250m = 14.6
    300m = 12.6
    350m = 7.9
    400m = 0
    450m = -10.6
    500m = -25.6

    Zero at 500 meters (sight set at 5)
    50m = 7.1
    100m =14.6
    150m = 20.9
    200m = 25.2
    250m = 27.6
    300m = 28.0
    350m = 25.6
    400m = 20.5
    450m = 12.2
    [​IMG]

    and this was 100 yards with an AK74 with a 3-9 scope that i once had,
    [​IMG]

    again this is just to help any one else who might be thinking of this.

    ammo is far less expencive than .223
     
  2. Gloves

    Gloves New Member

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    I like this post!

    What are the main differences from 5.45 x 39 and:
    7.62 x 39
    and
    5.56 x 45

    If I were to get a Russian rifle for HD and Range, you recommend 5.45 x 39?

    If could make a wild guess based on a hunch...
    It seems like Russia had found that their forces might be out-ranged by the 5.56 x 45 cartridge and went with a smaller lighter weight round for their AK 74 model (faster and flatter).

    I would be interested in seeing ft lbs. of all 3 at 100 - 400 yards.
     

  3. Nathantc

    Nathantc New Member

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    Realistically none of them are good for home defense as they will all pass threw a grown man at close range, as well as most walls.

    Buck shot from a 12g would be the best bet for home defense.

    Deer and hog, 7.62x39 is great, 5.56 or 5.45, I only use on fox, coons, rabbits, and other small critters.

    Not saying that u couldn't use 5.56 or 5.45 on large game, shot placement is key
     
  4. jpattersonnh

    jpattersonnh Active Member

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    As stated, 5.45 is not a HD round. It is an effective varmint round and works well on coyotes, using appropriate ammo.
     
  5. Quentin

    Quentin New Member

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    Nice write up, Nathan!

    One thing to consider, the really cheap surplus 5.45x39 is corrosive thus not a great choice for a direct impingment system. Also, AR magazines that reliably feed a full 30 5.45x39 rounds are rare and expensive - so what seems to be an initial advantage over 5.56x45 can shrink fast.

    For most of us it's best to use 5.45x39 (and 7.62x39) in AKs and 5.56/.223 in ARs. Especially while cheap surplus stuff and cheap AKs are available.