i was ever able to react, draw, and hit, at arm's length, with live ammo and a speed rig, starting hands at sides, and that took a warmup. .63 second was about the fastest I ever averaged to react, make a draw, and it chest at 5 yds, starting hands at sides, and that was after a few warmup draws. This was going to Weaver, but mostly point shooting. The .50 second stuff, was from a retention position.. In it, the top inside corner of the wrist slams into the bottom corner of the pec-ribcage, and that is the "feel" you need to fire, and reliably get chest hits, at arm's length. If you fire "from the hip", the hip or pelvic area is where your bullets will strike