14.5"bbl vs 16"bbl Bushmaster .223

Ballistic

November 05, 2004 05:08

Is there a great difference in accuracy with the above barrel lengths out to 200yds in .223 cal.??
The 14.5" bbl will have the AK type brkae attached and the 16" bbl has no brake or flash hider.
I like the idea of the shorter bbl with the AK type brake for rapid fire control.
What do you all think?

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  easygo6

  November 05, 2004 05:43

  Barrel length has no impact on accuracy. Precise sight alignment (assuming iron sights) on shorter barrels is more difficult to maintain during the trigger pull sequence. Actually regardless of barrel length the rule is this: the shorter the overall distance from rear sight to front sight the more difficult it is to maintain precise alignment during the trigger pull sequence.
  
  The reason is the greater distance between sights magnifies the slightest mis-alignment to a greater degree than would a shorter distance. This magnification of any mis-alignment allows the shooter the opportunity to identify and correct the mis-alignment. WOULD EVEN APPLY TO A WEAPON HELD FIRMLY IN A BENCH MOUNTED VISE (human eyes would align the sights).
  
  Velocity difference is negligible (less than 100 fps). Therefore, drop in trajectory is negligible, at 200 yds.
  
  
  
  "They're in front of us, they're behind us, they're to our left and to our right...they can't get away now."
  
  Chesty Puller, Chosin Reservoir, Korea
  
  SEMPER FI

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  easygo6

  November 05, 2004 05:46

  Remember: The rear sight is nearest your heart and is a true friend. Move the rear sight left the bullet impact moves left also.
  
  The front sight (being further from your heart and not a true friend) will move bullet impact opposite of the direction you move the front sight.
  
  "They're in front of us, they're behind us, they're to our left and to our right...they can't get away now."
  
  Chesty Puller, Chosin Reservoir, Korea
  
  SEMPER FI

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