how to do rifle to pistol transition drill

Shooter will begin at the low ready or high port at the 7 yard line. On the buzzer, shooter will engage the target with 2 rifle rounds, transition to pistol, then engage the target with 2 pistol rounds.
Grading criteria: Shots must remain within the “A” zone.
Novice: 4.5 seconds
Intermediate: 4 seconds
Advanced: 3.5 seconds
Skills:
⦁ Sight picture acquisition (rifle and pistol)
⦁ Trigger manipulation (rifle and pistol)
⦁ Weapon transition