Ballistic Tables for Long Range and Silhouette Shooting
Silhouette Ballistics Version – 21.0

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   Shimming Scopes 

Shimming Scopes Screen 


Iron Sight Radius: If you are changing the length of your barrel or using different sight radius, here is a quick and easy to use program to determine the minute of angle per click.  Just input the sight movement per click and sight radius and the MOA will be displayed.   

Scope Mount Separation: If you want to increase the elevation on your scope for greater range or just to center the scope at zeroing distance, just input the minutes of angle you want to adjust and the spacing distance of your scope mounts.  The thickness of the shim required will be displayed.  If you are using Burris "Signature" rings the program will lead you to which size inserts you need.

I have used this many times to determine exactly how much adjustment I need to make on scopes mounts.  Here is an article "Tapering an One Piece Scope Base" which used this program.    

Target Distance:
Here is a handy program to determine what a minute of angle equals at any shooting distance.  Just input the distance and minute of angle and the height for that angle will be displayed.


Interior Ballistics | Exterior Ballistics | Operating Instructions | Target Analysis | Standard Deviation | Bullet Data Base | Cartridge Data Base | Powder Data Base | Gun Data Base | Shimming Scopes