Testing E Target Accuracy

[243Mendoza]

I have reread this several times and it is not clear to me either, the following in particular:

"The example of the shot reported position without wind is shown in the left plot, and the reported position with the crosswind blowing, while the impact is in the same location as on the left picture, is shown in the right plot (note the wind indicators in the bottom left corners):"

I suspect that the report is too brief and has skipped over some details necessary to fully understand the methodology of the test.

 

[chkunz]

Good test data is a rare thing.

Obtaining good test data starts with defining the objectives of the test. Then the test data and test data accuracy that will meet the test objectives must be defined. Then the test configuration must be defined and designed that will meet the test objectives. The test procedure must be defined.

It is helpful to develop a test plan that includes the test objectives, the test procedure and the test data acquisition and data accuracy requirements. Once the test plan is complete, the cost and resources required to execute the test plan can be calculated.

The actual test includes the data acquisition and data analysis defined in the test plan.

And finally a technical report is written that clearly defines the results and conclusions of the test. Were the test objectives met? The test report should also repeat the requirements, design, procedure, data accuracy and any other information to clearly document the test.

 

[chkunz]

I think a good test would be to test the HEX in the unmodified configuration and compare groups with no wind and with wind and the same with an open sensor type etarget like SMT or SM. I know that the expectation for the HEX is that there would be no wind effect but I would like to see the test include this case for completeness.

I still do not understand how the HEX wind test was able to say that the groups would have been within 1mm except for the wind. Since we are shooting bullets with groups and not shooting lasers I am not sure how the test would deal with this. Any meaningful wind test would have to deal with this reality, probably it would have to be dealt with statistically but this would greatly complicate the test and the error may be larger than the wind effect that we are looking for.