FANTASTIC drill + target for working on them pistol skills. All you need is at least 50 rounds and LOTS of patience.

Distance: start at 3 yards and stay there until you can consistently hit 50/50. Move out 1-2 yards once 3 yards becomes too easy. Once 4-5 yards becomes to easy, back up another 1-2 yards, and so on. 

Instructions:

1. Dot 1: Draw and fire five rounds.
2. Dot 2: Draw and fire one round. Repeat that four times for a total of five rounds.
3. Dots 3 & 4: Draw and fire one round at dot 3, then one round at dot 4. Repeat three more times to make four repetitions, totalling 8 rounds.
4. Dot 5: Draw, and fire five rounds using the strong hand only.
5. Dots 6 & 7: Draw and fire two rounds at six and two more rounds at seven. Repeat three more times for a total of 16 rounds.
6. Dot 8: Start at a low ready position, and fire five rounds using only the weak hand.
7. Dots 9 & 10: Draw, fire one round on dot nine, perform a speed reload and fire another round on dot ten. Repeat two more times for a total of six rounds.

Attribution: Todd Luis Green @ pistol-training.com + David Blinder @ personaldefensetraining.com