Hmmm . . . at our speeds I think realistically we are no further than 21 feet, if I were to hazard a guess, and you can decide if it makes sense,  we are within melee range for a second or two before we start moving away from one another, thus a melee exchange or two. 

Also, I figured you could move faster but had mentioned the above mentioned 300 somewhere. Being that I am using EM to move, I can also accelerate to greater speeds, only limited by friction. But then those speeds would not be fun and not allow us to hash things out.