Our training is as follows - retention and other training uses a red plastic training gun.
Function training prior to range use -live firearms with training ammunition in the classroom, (no personal firearms/ammunition allowed on complex, much less in the class room), brass cases with bright orange plastic "bullets". Instructors watch you load and unload magazines with the orange ammo they give you.
Live fire - ammo is handed to you at the range, 56 rounds, load three mags and keep six in your pocket, that's all you get for this year! Sidearm is UNLOADED off the line, only rangemasters have loaded sidearms.
BTW, you lose track of a round, we WILL spend ALL day looking for it.