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• NN Posts: 25,236 Senior Member

  December 2016 #2

  woodsrunner wrote: »

  Do you know the muzzle velocity of a 3"50cal and a 5"30cal? What is it?

  
  3"50

  ---

  2700 fps
  
  5"50

  ---

  2500 or 2650 fps depending which mod

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• tennmike Posts: 27,457 Senior Member

  December 2016 #3

  3"-50 muzzle velocity is 2750 FPS
  5"-38 muzzle velocity is 2600 FPS
  5"-54 muzzle velocity is 2700 FPS
  
  That muzzle velocity will vary depending on the particular warhead fired. Some are heavier like the APHE and some lighter like the straight HE.
  
  Got those velocities from one of the Navy history sites.

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• woodsrunner Posts: 2,725 Senior Member

  December 2016 #4

  Thanks! You can stand behind a 5" and see the projectile going down range, but not with a 3"....at least I couldn't. I figured the 5" was a lot slower than that, but 'yall got to be right!

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• tennmike Posts: 27,457 Senior Member

  December 2016 #5

  I watched many a 3" go downrange, but I was first loader on the twin mount and in a perfect position to watch them. At three miles you could watch them all the way to the target.

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