What I do know.
It is in fact a two side arms fighting style.
It employs the used of side stepping the enemy to basically circle them while firing.
and it's not commonly used after the invention of fully automatic side arms with larger capacity and SMG's more to follow
raven28256 of movietome.com wrote:
"The real "gun akimbo" technique
In layman's terms, dual wielding. As most of you undoubtedly know, "dual wielding" is a very unrealistic tactic best reserved for cheesy or stylized action flicks and games. While it is possible to dual wield it is generally something that takes YEARS of practice to even get to the point where you can hit two targets at once with any degree of accuracy. Therefore, this isn't a technique that our military teaches.
But there is one instance of this being used in real life. The Russian technique "Macedonian shooting" was a real albeit fairly rare tactic used by Russian NKVD officers between the World Wars. It took a lot of practice and was usually used with two revolvers. The officer held his hands very close together and interlocked his thumbs to form a "V" shape. This technique was mostly used to suppress an enemy, not actually hit them, in the days before widespread use of submachine guns. It fell out of favor when the Soviets were able to mass produce cheap yet effective submachine guns and higher capacity semi-automatic pistols and machine pistols.
Now, dual wielding is actually a Hollywood bastardization of Old West shooting techniques. It wasn't uncommon in the days of revolvers that had to be manually cycled via pulling the hammer for gunslingers to carry two revolvers and alternate firing them. The shooter would fire one, then fire the other as he pulled the hammer on the other revolver. Similar technique was used in the days of muzzle loaders, back when guns only held one shot and took a while to reload.
wikipedia wrote:
A possible example of actual use of two guns firing at the same time is "Macedonian Shooting", practiced by Russian special forces.[1] This also evolved as a method of increasing rate of fire, more in order to force the enemy to take cover than to try to accurately hit them, and was generally practiced by NKVD officers issued a pair of revolvers. However, the invention of smaller, cheaper submachineguns around the 1950s rendered the tactic largely obsolete and it fell into relative obscurity.