And doesn't the military try to train everyone so that they can use a gun with either hand (or both)? TS himself has no military background, and having him use guns in either or both hands (a la John Wayne or other cowboys who wore guns on both hips) is really going into "detail" realism for Magnum's military skills background, and I really doubt the producers/directors, etc., put that much thought into gun handling scenes. It was probably more what was the best angle for the take and they probably didn't think the viewers would even notice -- and who did at the time?
Hey Golf, another good post.
My experiencce in the Army was that they did not train us to shoot with both hands. You could if you wanted to, but it wasn't required. I qualified on the rifle range and hand gernade range as a righty only. You did not have to qualify using both hands. It's funny, I qualifed as an expert on the gernade range. But, again as a righty, as I am right handed, and I am not ambidextrous. So if I tried to throw a live gernade as a lefty as I do right handed, someone would be in for a world of hurt.
As a matter of fact, I knew many leftys who chose to qualify witht he M-16 as a righty because the hot brass is ejected out the right side of the rifle, and if you were firing left handed, the brass would often go down your blouse and burn the you know what out of you.
They had brass deflectors you could put on the rifle so you wouldn't get brass down your blouse, but it didn't always divert every spent shell.
As far as TS's military background, I was under the impression that he was in the California Army National Guard.
In part 2 of Did You See The Sunrise, I also took notice that Magnum had his .45 in his left hand when he opened the door. However, I thought maybe he did that because of the way he approached Ivan's limo and rear right door. His right hand was the first to reach the door handle and he could have opened the door without Ivan seeing him through the window as opposed to, if he had his .45 in his right hand then he may have had to travel further down the length of the car and expose himself through the window before he could open the door with his left hand. I think he did it the way he did (or the writers had him do it) for purposes of surprise.