Home > DOE article and Average Group Radius Spreadsheet

Using Design of Experiments (DOE) to Work up a Match Load


PDF copy of my Design of Experiments article first published in the January 2003 issue of The Varmint Hunter Magazine (#45).

View the Design of Experiments article pdf (113K).

 

A Microsoft Excel spreadsheet for calculating Average Group Radius (AGR)


Calculating the Average Group Radius by hand using a calculator can take some time and be prone to errors.  Here is a Microsoft Excel spreadsheet that makes the calculations for you.  You enter X and Y coordinates from your 3, 5, 7 or 10 shot target and enter them into the appropriate columns.  The accompanying Microsoft Word document explains how to measure the coordinates using a ruler or dial caliper and also how to scan the targets into the Jasc Paint Shop Pro graphics program to so you can quickly measure multiple targets and get better accuracy in your measurements.

All this is to aid in developing better loads for match target shooting whether it be in developing a load for High Power Rifle shooting as we do with the San Jose Zouaves or other shooting sports.

Download the agr_rev1.zip file (253K).