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Need Ballistics Info On New Winchester Ammo

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  • 3 weeks later...



I am unable to find the first line of sight - bullet path cross distance for a 200 yd sight in for:


1. 25-06 115 gr.;

2. 270 130 gr. (for SBST270 not 2705);

3. 7mm-08 140 gr.; and

4. 308 150 gr..


Any help will be greatly appreciated.

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The following information is needed before that can be determined.


  • Ballistic Coefficient (each load)
  • Muzzle Velocity (each load)
  • Temperature
  • Elevation (altitude)
  • Barometric Pressure
  • Relative Humidity

We'll assume zero wind just to keep things simple.

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