GUN Noob question for gun experts.

Discussion in 'On Topic' started by OPM Inc., Aug 2, 2003.

  1. OPM Inc.

    OPM Inc. OT Supporter

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    How bads the recoil on an m1a? Whats the difference between a 30-06 and a .308? Which one is stronger? Never did understand the difference between 9mm and a .22 caliber. Is it the diameter of the bullet? Why is it that a 9mm is bigger than a .223 but when you shoot a .223 it has a stronger recoil? :confused:
     
  2. caliber is diameter of bullet measured in inches .223 = .22 inches. 9mm = 9mm diameter.

    *ahem*

    Recoil = conservation of momentum

    .223 bullet weighs somewhere around 56 grains, travels at around 3000 (these are really rough estimates)

    9mm weighs about 100grains, travels around 1200 fps


    You see, the smaller .223 has a fuckton more powder behind it, so it hits harder and goes faster.

    The general reason for the difference in the design is that the .223 is for shooting soldiers who could be wearing some kind of protection, which you need smaller diameter, harder, and faster projectiles to defeat.

    30-06 and .308 use (approximately) the same BULLET, with different brass (holding a good amount more powder in the case of the 30-06.

    Finally, you use .22 and .223 interchangably. They aren't, the .22 is usually a .22 rimfire, which is a tiny cartridge, firing a smaller (less long/dense and more rounded) projectile than the .223 at around 1/3 the speed, so it's much more weaksauce.

    well, that's a starter, assuming I didn't fuck up.

    Here's some relations, including the might 50 BMG everyone knows and loves.
    Note: not to scale, just to ratio. (duh?)

    [​IMG]
     
    Last edited by a moderator: Aug 2, 2003
  3. OPM Inc.

    OPM Inc. OT Supporter

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    :bowdown: Great explanation. Thanx.
     
  4. Oh, and to convert from mm to inches: there are 25.4 mm in an inch. So .223 = 5.56
     
  5. SS109

    SS109 3100 FPS OT Supporter

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    I don't think the .308 in a semi-auto has bad recoil at all.
     

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