erm... i just had a look at that coh2stats site... sry to tell you this, but the info on there is missing a lot of essential information. therefor, the formula you used is wrong.
for example, the stats site is missing the cooldown duration multiplier values, which are vital to calculate DPS in relation to distance.
Sure, no problem. I've actually mentioned multiple times in this thread that I think the calculation is most likely imprecise and useful only as a benchmark.
I can easily fix the data. However, to do so I need:
1. an accurate source of stats
2. an accurate formula for calculating the DPS
If you can provide either one of those, I will happily fix the chart.