How do I train the revolver transition between the first and second gun?

The revolver transition — holstering the spent first gun and drawing the second for the second half of the course — is a moment in the run that costs time if it is slow and creates safety problems if it is rushed or handled carelessly. Training this transition to be smooth, fast, and safe requires the same deliberate, repetitive practice that the shooting mechanics themselves require, and it should be developed through dry practice on the ground before it is attempted at speed on horseback. The transition begins with holstering the first revolver. A clean holster — where the gun seats fully and securely without fumbling — is the prerequisite for a fast, clean draw of the second gun. A gun that is not fully seated or that requires the rider to look down to confirm the holster position costs time and momentarily diverts the rider's attention from the course ahead. Practicing the holster motion until it is automatic — the hand placing the gun correctly by feel alone — is the ground practice that produces a clean holster under competition pressure. The draw of the second gun immediately follows the holster and should flow from it as a single continuous motion rather than as two separate actions with a pause between them. The rhythm of holster-draw practiced in dry-fire until it is smooth and consistent carries into mounted practice and eventually into competition in the same way that any other trained physical sequence does — through repetition until it is automatic. Mounted practice of the transition should begin at a walk and progress to competition speed only after the motion is completely smooth and safe at slower paces. A rider who fumbles the transition at a walk will fumble it at a lope with less ability to correct the problem safely. The transition is a meaningful component of the competitive run, and the time saved by a smooth, practiced transition accumulates across an entire season of competition.