The critical statistic for an E-Targets is the Average Standard Deviation between the actual Point-of-Impact, and what the software calls it.
How an E-Target scores, will be directly related to this determination. An E-Target can score correctly but be way out in precision.
The following are precision test results we have completed at Range demo’s.
The testing process: The acoustic center is determined. Then a Coroplast sheet that has been divided into 4 quadrants with horizontal and vertical lines. The center or where the lines intersect is placed directly over the acoustic center. Then the shots are scattered randomly around the 4 ft. by 4 ft. Coroplast sheet. Measure the shot placements from the holes center to the horizontal and vertical lines. Finally enter the measurements and computer into an appropriate spreadsheet. A downloadable template will be available at this page bottom.
NB This last table has a significant story.
Take note of the basic SD Error on all other tables. You will notice this one is almost 4 times bigger. Numerous shooters had previously shot on the targets. Then we decided to run a test. When the results came in we were devastated. Upon examination, we discovered that someone had shot out a sensor wire.
Therefore, instead of 8 sensors providing 56 co-ordinates we had 7 sensors and 37 co-ordinates. That resulted in a basic reduction from 2 +/- mm to 7 + SD Error. That’s the significance each sensor.
The HEXTA MATCH-GRADE Target is THE ONE AND ONLY 8 sensor target providing truly 56 co-ordinates for you Point of Impact confidence! To understand the physics click on HEXTA MGT.