From: http://pistol-training.com/drills/bill-drill

designed by Bill Wilson (sometimes erroneously credited to Bill Jordan, Bill Rogers)

Range: 7yd
Target: standard IPSC target
Start position: gun in holster, hands at surrender position
Rounds fired: 6

The Bill Drill is intended to improve speed without sacrificing accuracy. The details listed above are the traditional version, but any 6-shot drill done at speed on a single target can achieve the same basic goal.

Six shots are fired as quickly as the shooter can achieve six hits on the target. The drill teaches sight tracking, proper visual reference, recoil management, and trigger manipulation.