Water cannon Range modifier

Afraid not. I've shot too many water crystals.

Water cannon balance is cylinder based modified by "something that is not dex" (which is probably AM). shoot off, record, and plot about 100 about shots with a rF WC and a rN AM and you'll see the truth in the matter.

the normal damage modified by range does not crit as that formula says. Again, shoot off and record all crits from a rN AM rF WC at max range until you crit a value greater than your formula says.

edit: and until you have a proper % for the range modifier your formula isn't valid. I have personally used a rN AM and rF WC to test the range values and the minimum value (max range) I hit was 50% while the maximum value was 40% (min range) because of the low balance (hundreds of shots giving a 15% balance) I have allowed that I may not have hit the maximum point blank value.