The "formula" at the top of the page is completely wrong, it is 2 x G, not G squared. They have also used an old incorrect value for G. The calculation has used G + G which is not G squared and the way it is written would not give the answer they have if the calculation is carried out in the correct order. Also, grams and grains are measures of mass not weight, so basically whoever wrote that "formula" or carried out the calculation is mathematically ignorant. Unfortunately, only too common of people in the commercial forensic laboratories based on the evidence I saw when working.Originally Posted by angrybear
How about dividing by 450800 ???
this is from the Helston Forensics Standard Airgun test;
The value 450436.7 comes when the internationally correct accepted value for acceleration due to gravity is used.
Reply With Quote