OK, I'm not asking about training weak hand, I know I've got to do that. But here's my thing. I haven't fired many handguns in my short life. I've fired probably:
20 - .45 ACP from a 1911
10 - .40 S&W from a Glock 22
1 - .44 Mag from a Revo (borrowed)
300 - 9mm from a Taurus PT 99.
I have only recently gotten more into guns, and just Saturday bought a good handgun for CCW (brand new Taurus 605) and am going to start training. I took it out Sunday morning just to get a few rounds through it and put 50 .38 spl and 10 .357 GDHP through it. On a whim, I put the last 10 .38spl through with my left hand, and my groupings were noticably better with my left hand. It was all the ammo I had at the time (and it was 20 degrees) so I didn't get a chance to do more testing. I was curious, though, if this has happened to people, or people you might know: people who are right eye dominant (I'm certain of this) and right-hand dominant, but may shoot better with their left hand.