Old Cane,
ButlerFord45 has got the secret. You can teach your left hand to do anything your right does.... it just takes some time. Dry fire practice will be a big help. Draw and bring the gun up and fire 5 or 6 times. Then holster and do it again. Do this four or five times and put it away. Do this exercise again after 30 minutes rest. The time off between exercises is important. You won't gain as much if you practice for an hour straight because, until you get used to it. you will get sloppy after a few repetitions. This will cause you to practice bad habits and make them permanent. Shooting position is also important. When shooting one handed, I keep my shoulders about 90 degrees to the target. I put the off hand (fist lightly clenched) just off the centerline of my chest. Pull back with the off hand as if drawing a bow: at the same time I push forward with the gun hand, keeping the elbow of the gun hand slightly bent. This sets up some tension in your upper body in a straight line toward the target and helps to keep the gun steady. Another technique is to tilt the gun slightly inward, about 5 degrees. This will help to lock up the wrist a little and also brings the sights a little closer to my dominant right eye. This tilt will cause the point of impact to change somewhat at ranges beyond 25 or 30 yards but at CAS (or self defense) distances with big targets it's not enough to worry about. The main thing is to get some practice. When you start to shoot matches with the non dominant hand, go slow enough to make the hits. Speed will come in its own good time.
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