The Target Analysis program will allow you to compare two similar looking targets and determine which target has statistically the best group size. It does take a little more work to use the Target Analysis program than just eye balling a couple of targets. You mush locate the center of each shot relative to the left edge and bottom edge of the target. The left edge and bottom edge are used as the X and Y axis of a Cartesian Coordinate System. Each shot must be measured at a right angle to the axis. Using the left edge and bottom as the axis negative numbers are avoided. After the X and Y coordinates for each shot are determined and entered your answers are just one mouse click on the target analysis button away. The target analysis will plot each shot on single bull's eye type targets and provide the statistical results shown on the sample screen above.
There are only twelve targets shown on the working screen, however there is a file with hundreds of other target which may be selected for display on the working screen.
One of the most unique features is using this target analysis program to show the group size calculated using the bench rest group size option in the exterior ballistic program. The target below was generated in that matter.
Here are a couple of links to articles comparing different cartridges and calibers for long range target shooting that used Silhouette Ballistics Exterior Ballistic and Target Analysis program to clearly show the differances and affects of wind speed and wind direction on group size and score.
223 Palma Rifle Cartridges
Shooting 600 Yards for Score
Shooting Palma Bullets Sierra 155 gr MK
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January 4. 2012