File:Ink Saver Main Shoot Time Chart.png

Formula
Shooting time = 100/([base consumption per second]*(1-((0.99*x-(0.09*x)^2)/(200/3))))

Base consumption per second:
 * Splattershot Jr: 6
 * Aerospray: 7.5
 * .52 Gallon: 8
 * Splash-o-matic & Sploosh-o-matic: 8.4
 * H3 Nozzlenose & Splattershot: 9
 * N-zap: 9.6
 * L3 Nozzlenose: 10
 * Dual Squelcher & Jet Squelcher: 12
 * .96 Gallon: 12.5
 * Splattershot Pro: 14.25