Are you in a profession or sport where you regularly practice firing and need to manage your firing statistics? Group Size Calculator 1.7 is the shareware application that can help you in preparing these group statistics of shots fired on your target. With this application what you need is a scanner. Just scan the image of your target to your computer and click on the bullet holes in the image. This application will automatically measure the X-Y location of your shots. If you don’t have a scanner then also you can use this application. Measure your shots using a caliper and enter the X-Y locations of each hole into the application through a text file. Rest is all done by GCS. GCS automatically calculates Group center, Group size, Mean average distribution of the group, Average radius, Radius standard deviation etc. If you wish to remove some shots from the calculation you can mark them as fliers.

Since this program has been developed with VB6 you may face difficulty in running it if you are using VB5.