I shot a couple of IDPA matches a few years ago and want to get back into it. I have a question regarding the differences between the "tactical reload" and the "reload with retention." As I understand it, a tactical reload involves taking a spare mag from a pouch, ejecting the one in gun, inserting the fresh one and stowing the ejected one. A reload with retention involves ejecting the mag from the gun and stowing it, then drawing and inserting a fresh magazine. The question I have is, under what conditions would I eject a magazine, either partially loaded or empty, before having the fresh magazine in hand and ready? I understand the tactical reload, and practice it regularly, but I don't understand why I would eject and stow a magazine, and THEN reach for the new one? Can anyone offer any insight?
I started out with nothing and still have most of it.