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Thread: 223 AK shape rifle by RAC (Royal Arms Company) : A review..

  1. #21
    Supreme Member pakistanitoup's Avatar
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    Bullet Weight: The Ideal Rate of Twist
    Bullet Weight Twist
    55-Grain 1:9
    62-Grain 1:8 or 1:7
    77-Grain 1:7 or 1:8
    80-Grain 1:7
    Keep Calm & Carry One

  2. #22
    Member Emeritus Enigmatic Desires's Avatar
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    Quote Originally Posted by pakistanitoup View Post
    Bullet Weight: The Ideal Rate of Twist
    Bullet Weight Twist
    55-Grain 1:9
    62-Grain 1:8 or 1:7
    77-Grain 1:7 or 1:8
    80-Grain 1:7
    Thanks a whoel bunch Sir.. I wil try and find as many of the above grain rounds and try em out
    "Keep a complete control over your Temper and Anger because I never found anything more beneficial at the end and producing more good results then such a control" Hazrat Ali (A.S) tz.enigmatic@gmail.com

  3. #23
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    Quote Originally Posted by pakistanitoup View Post
    Bullet Weight: The Ideal Rate of Twist
    Bullet Weight Twist
    55-Grain 1:9
    62-Grain 1:8 or 1:7
    77-Grain 1:7 or 1:8
    80-Grain 1:7
    Twist rate is also dependent on length of the barrel.... i.e. twist rates are kept higher in shorter barrels for the same reasons... to stabelize hotter rounds... imho.

  4. #24
    Supreme Member pakistanitoup's Avatar
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    Quote Originally Posted by Khalil View Post
    Twist rate is also dependent on length of the barrel.... i.e. twist rates are kept higher in shorter barrels for the same reasons... to stabelize hotter rounds... imho.
    yes dear. barrel length, ammo type, projectile length, barrel material type and many other factors.
    Keep Calm & Carry One

  5. #25
    Member Extraordinaire shahroze's Avatar
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    Quote Originally Posted by pakistanitoup View Post
    Bullet Weight: The Ideal Rate of Twist
    Bullet Weight Twist
    55-Grain 1:9
    62-Grain 1:8 or 1:7
    77-Grain 1:7 or 1:8
    80-Grain 1:7
    good share...
    Communist until you get rich; Feminist until you get married; Atheist until the airplane starts falling.

  6. #26
    Member Emeritus Enigmatic Desires's Avatar
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    The standard .223 local ak shape barrel is 16. 4 inches as a general rule (if I recollect correctly)
    "Keep a complete control over your Temper and Anger because I never found anything more beneficial at the end and producing more good results then such a control" Hazrat Ali (A.S) tz.enigmatic@gmail.com

  7. #27
    Member Emeritus Enigmatic Desires's Avatar
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    Update

    The weapon was repaired and it does not go on ful auto on its own. Unfortunately It cant shoot straight at all. Tumbling and keyholing issues. We were able to get the projectiles on paper at 15 yards but they were tumbling too bad to allow us to take it as a serious rifle. And than the firing pin broke into peices. Back to the Armourer again.

    My conclusion was that these things are designed as showpeices for guards and that is about it.
    "Keep a complete control over your Temper and Anger because I never found anything more beneficial at the end and producing more good results then such a control" Hazrat Ali (A.S) tz.enigmatic@gmail.com

  8. #28
    Enthusiast TRX's Avatar
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    Most online twist data is going to be in inches, but you can convert to millipedes if necessary.

    Take your cleaning rod, put a brush or patch on it, mark the rod at the muzzle with a piece of tape or a felt tip pen, and pull the rod out slowly. The rod will twist as the patch follows the rifling. When the rod has twisted until the mark is pointing the same direction it started at, stop.

    Measure the distance the rod came out of the muzzle:

    178mm = 1:7
    203mm = 1:8
    229mm = 1:9

    +/- 5mm would be "close enough for government work". If the barrels were made in a metric shop, the twist might be 1:180, 1:200, or 1:230, which would be convenient for their measurement.

  9. #29
    Member Emeritus Enigmatic Desires's Avatar
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    Quote Originally Posted by TRX View Post
    Most online twist data is going to be in inches, but you can convert to millipedes if necessary.

    Take your cleaning rod, put a brush or patch on it, mark the rod at the muzzle with a piece of tape or a felt tip pen, and pull the rod out slowly. The rod will twist as the patch follows the rifling. When the rod has twisted until the mark is pointing the same direction it started at, stop.

    Measure the distance the rod came out of the muzzle:

    178mm = 1:7
    203mm = 1:8
    229mm = 1:9

    +/- 5mm would be "close enough for government work". If the barrels were made in a metric shop, the twist might be 1:180, 1:200, or 1:230, which would be convenient for their measurement.
    Thanks TRX.. I will try that out. I am trying to get one of our manufecteres to make me a 5.45x 39 rifle. But without the tumbling.
    "Keep a complete control over your Temper and Anger because I never found anything more beneficial at the end and producing more good results then such a control" Hazrat Ali (A.S) tz.enigmatic@gmail.com

  10. #30
    Enthusiast TRX's Avatar
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    As a first diagnostic step, you should clean the barrel with a good copper-removing cleaning solution. Copper fouling isn't always visible, particularly in a tiny bore like a .223, but it can really hurt accuracy.

    Also take a look at the muzzle and make sure someone hasn't dropped it muzzle-first against concrete or rocks. This new fad of carrying rifles muzzle-down is silly, and that's just one of the reasons why. The muzzle chamfer should be perfect; anything less will affect accuracy badly.

    If it skill shoots badly after a thorough cleaning, try a different brand of ammunition. The tiny .223 bullets aren't very tolerant of imperfections, many of which can be internal (varying jacket thickness, unevenly-shaped cores, etc. The bullet jackets are supposed be a specific type of brass; the wrong alloy will allow the metal to smear in the bore. Even if you're shooting a known-good brand of ammunition, sometimes bad components make it into the supply chain, assuming it's not an outright counterfeit.

  11. #31
    Member Emeritus Enigmatic Desires's Avatar
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    Quote Originally Posted by TRX View Post
    As a first diagnostic step, you should clean the barrel with a good copper-removing cleaning solution. Copper fouling isn't always visible, particularly in a tiny bore like a .223, but it can really hurt accuracy.

    Also take a look at the muzzle and make sure someone hasn't dropped it muzzle-first against concrete or rocks. This new fad of carrying rifles muzzle-down is silly, and that's just one of the reasons why. The muzzle chamfer should be perfect; anything less will affect accuracy badly.

    If it skill shoots badly after a thorough cleaning, try a different brand of ammunition. The tiny .223 bullets aren't very tolerant of imperfections, many of which can be internal (varying jacket thickness, unevenly-shaped cores, etc. The bullet jackets are supposed be a specific type of brass; the wrong alloy will allow the metal to smear in the bore. Even if you're shooting a known-good brand of ammunition, sometimes bad components make it into the supply chain, assuming it's not an outright counterfeit.
    Thanks for your tips TRX. So far, i have only used NATO 5.56 M855 green tips on local rifles.
    "Keep a complete control over your Temper and Anger because I never found anything more beneficial at the end and producing more good results then such a control" Hazrat Ali (A.S) tz.enigmatic@gmail.com

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