What are the stat requirment to reach high end range?

For classes other than DA and Xenon the range formula is simply: (4*Primary Stat + Secondary Stat)*Attack/100*(1+Attack%)*(1+Passive damage%)

Just work out what total Primary stat you need by fixing secondary stat to 2k or something and attack to 1k, 1.5k, 2k.

I was looking through old data and thought there's still weapon multiplier and that's why I asked.
Thanks for the formula, it is very helpful.