no it wouldn't .
somone with 40 ping would shoot you with a weaker gun .
you got the ultimate gun .
you both shoot at the same time .
you will die around 0.4 seconds after you have pressed the trigger .
and your bullet will end up at the target in 2.5 seconds .
by that time the weak dude has already moved ...
edit .
your net speed is like how much cheese you can get from the fridge to your mouth AT ONCE .
ping is how long it takes from the fridge to your mouth .