away,standing start. From 6 ft, he's upon you in .50 second, can you HIT a man in the chest or head, as he dives at you, THAT fast? 10ft, he takes one step as he gets his head and torso down, and then leaves his feet in the dive. So you have almost no time to fire at him in the standard, upright torso position that so many "think" is how things "go down". He can easily throw his crowbar, screwdriver, channel lock pliers,flashlight at your head as he does this, from 15 ft away, too. Can you avoid the thrown object, step to one side, and still hit the MOVING 10" circle of his chest, in the 1.5 seconds it will take him to be upon you, from 5 yds away? If your gun is still in a concealed belt rig, best figure on using kicks to keep him "at bay, until you can get your gun out and "on" him, at typical sub 10 ft confrontation ranges.