Fluid flow emerges with high velocity referred as liquid jet. Water Jet having its applications in many fields includes agriculture and power generation and it has been widely utilized. Impact value of the jet is highly important, to generate maximum efficiency in operation. Many factors influence the impact value of jet and it depends on type of vane used such as: Flat, hemispherical, curved etc. The aim of this work is to investigate the impact coefficient of jet for various discharges by comparing theoretical forces as well as forces developed through experiments for different target vanes. A systematic estimation of theoretical forces, experimental forces and its error was done in this experiment. For this purpose, weigh balance, target plates, vanes, recirculation pipes and Rotameter were used. Result of this study indicate: discharge variability influences the impact value and for a particular discharge obtained values are within the limit.