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EST. AUG 2018

External Ballistics and case volume -223Rem  

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88M_VET
Admin
Joined: 4 months ago
Posts: 28
August 18, 2018 02:53  

I know when I started to fine tune and get into precision loading it was hard to find charts that show the different internal volume of different manufacturers. Here is some good info. 

Also an external trajectory chart for the common 63gr 5.56 out of a 16in barrel @ 2706FPS holding a 25M zero (NOTE: Chart is in yds)

“If a man does his best, what else is there?”
– General George Patton Jr


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Mike_T
MIL/LEO
Joined: 4 months ago
Posts: 11
August 21, 2018 02:37  

Thank you, where did you find the trajectory chart?

WORK HARD, PLAY HARD AND HAVE FUN - LIFE IS SHORT


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88M_VET
Admin
Joined: 4 months ago
Posts: 28
August 21, 2018 03:06  

I have targeting software that allows me to calculate trajectory with many variables, to include angle and environmental changes. There are some free ones out there if you need one or let me know and I will post what you need in the reloading forums. Just get me the following data as closely as possible:  * = Needed  

  1. Caliber*
  2. Projectile weight*
  3. barrel length*
  4. average muzzle velocity (or range that it was calculated)*
  5. zero range*
  6. height of sight above bore*
  7. Barometric pressure
  8. Humidity
  9. Temperature
  10. uphill or downhill angle 

“If a man does his best, what else is there?”
– General George Patton Jr


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