I think the article was in the latest NRA Monthly.
Some reasons he brought up that might require that type of one handed shooting, of course, were an injury to the dominate hand which everyone mentions, but he also mentioned you might be on the phone (With PD?) or holding or protecting your child. (Good Point.)
One he didn't mention, but WE trained our officers for, was positional shooting... if you want to keep the lowest profile, meaning lowest exposer from behind cover, you'd want to change hands when shooting from cover, depending on which side of the cover you shoot from. You greatly reduce your exposure if you can shoot with the off hand when needed. Try it and you'll see. This applies to both handguns and long guns.
He did suggest that you need to practice one handed, with both the strong and weak hand, and RELOADING with one hand. Various techniques are available on You Tube... I won't try and cover them here. Another thing to consider is something else I taught my students, both LE and Civilian.
When you shoot weakhanded, with either one or both hands engaged... but more so with one handed shooting:
I found that it helps a large percentage of shooters to slightly cant the top of the gun toward the centerline to bring the sights in line with the dominant eye. This helps to avoid cocking the head at an odd angle to bring the dominate eye in line with the sights in the weak hand. Most shooters AREN'T cross eye dominate.
I hope this helps at least one of our members. I'm getting old and forgetful, but I try really hard to remember to fire a few strings weak hand when I do get to the range. Never hurts... we never know what might come up.
