im the same as you but i have no ammo on any guns the only way to get ammo is to kill
those ganados what i do is wait till the get close to me and knife them on their knees
allowing me to suplex them or if they have weapons dodge it once by walking back and while
he returns for another hit knife him in the face or knees which ever one is best for you i
know have about 60 shotgun shells 100 handgun ammo and 23 rifle and im still using this
technique