There is no direct correlation between qualification scores and gunfight survival results, but there is a stark and direct correlation for those officers who shoot competition with handguns. Jim Cirillo of NYPD Stakeout Team noticed it, Border Patrol noticed it, and only those with their own peculiar agendas to advance manage to blind themselves to it.

Cops who have shot a lot in competition are overwhelmingly more likely to win actual gunfights, and to have a hit ratio in the field hugely higher than their brother officers who have not been in a match. The reason is simple: handgun competition inures you to shooting under stress. When the fight-or-flight reflex hits, those without this conditioning often break under stress. For those who have this conditioning, stress with a gun in their hand has become the norm.

– Massad Ayoob, The Crucible Of Competition