Magazines and Speed Loaders

Pistol and revolver shooters require different holster-belt positioning for their additional ammo. There is a wrorng way to set-up your duty/carry belt and, naturally, the wrong way seems to be the most preferred.

Revolver:  Place speed loader pouches on the shooting side of the belt (in front, obviously.) Why?
A. Because you will transfer the revolver to the support hand and use the shooting hand to retrieve the speed loader. Pouches on the shooting side are easier and quicker to access with the shooting hand.
B. When firing from a prone position it is easier to roll to the non-shooting side during ammo changes, allowing the suport hand to eject the spent rounds in a position more naturally resembling standing, while the shooting hand freely accesses fresh rounds.. 

Pistol: Place magazine puches on the non-shooting side (again, in front.) Why?
A. The shooting hand ejects the magazine on a pistol as the non-shooting hand drops straight down to grab a fresh magazine.
B. When firing from the prone position the shooter can easily roll to the shooting side and access the pouches without pinning the non-shooting arm underneath his body. Also, in the case of an early magazine replacement the shooter may continue to fire.

As with everything, test and train with it before using this technique.