this build is hefty in forma and even uses an exilus slot but I assure you it is worth grinding for. if you had enough formas it would probably take 2 hours though so actally it doesnt take that long and the parts to make this are not hard to farm so... anyways I recommend using this with my infinite damage [Mag] breach surge build in my account for some sparky gameplay or if you want to lower your fps to 1 and a half. still its hard to get the forma without buying it, six days just to build six. but its like I said, its worth the grind.

prime [Target Cracker] is essential if you dont have it I recomend using the normal version or [Sharpened Bullets] for it gives +15% more than [Target Cracker]

[Galvanized Shot] can be switched for out for [Hornet Strike] on lower level missions where you don't want to ramp up you damage to get a kill or when you dont have [Galvanized Shot]

[Galvanized Diffusion] can be switched out for [Barrel Diffusion] for instant +120% additive multishot or for when you don't have the galvanized version

depending on who you are fighting you can switch the prime [Expel Grineer] to another expel.
if you do not have a prime expel, add a primary element instead such as heat or cold. If you are going to switch it out for fire rate make sure it is not too much so that [Hemorrhage] procs and [Galvanized Shot] can do more damage.

if you are not fighting against grineer, infested or sentients, then you may switch out the elements to form a weakness to the faction you are fighting against

if you do not have [Galvanized Crosshairs] can switch it out for the normal version or just use prime [Pistol Gambit] or the nonprime

you can switch secondary deadhead for secondary merciless if you are not good on getting headshots, but if that is the case then just don't use this build because it relies immensely on getting headshots to activate the seeking projectiles. you can switch it out for secondarydexterity if you will be using this weapon in tandem with a melee but I don't' recommend that as it would be very hard to ajust to headshots in the middle of a fight.

the exilus slot mod is completely optional, you can put in whatever you want in it.