I, for one, keep all mine - for my Glock 26, FMK C9 2G and the GSG 1911 .22 I use for training - loaded with carry ammo. And yes, I often carry the GSG while hiking, fishing and doing outside work in rural locations. I have FMJ for training, but I unload the carry ammo from the mags I’ll use for training and reload FMJ. Once done I refill the empties with carry ammo. May sound like a process, but not being able for afford extra mags just for training, I do what I have to do. Why not load a cpuple mags with FMJ and leave them that way? Since I’m responsible for where that round goes when it leaves my weapon, I won’t take the chance on pulling the mag with the wrong ammo in for use in my weapon when I carry for personal defense.