 The uses and range of the cannon and cannonballs vary over different sources.The Jaivana Cannon was only fired once by the Jai Singh II, as a test-fire in 1720 and the then Mughal Emperor Muhammad Shah is known to have attended the event before ousting the Sayyid Brothers from power.The most exaggerated myth claims that the weapon had a range of , other sources say it is 35, 22 and , although the exact range could perhaps never be determined without adequate scientific computation.