So this is something that has been in the PC version for some time, and I think it's a vital part of gameplay. Being able to pump shotguns, and cycle bolts, either to remove ammo when you drop the weapon, or to transfer it, would be very useful as well as much more immersive. Right now when you load a mag into a gun, or put a bullet in the chamber, there is no other way to remove it without firing the weapon. While this isn't a bug per se, the fact of the matter is that this has been a feature for a long time on the PC version, and to not include it in the xbox version only shows incompetence in button assignment for controllers, which one would only need to look at games like elite dangerous to see that a controllers functions are not limited by it's layout, but just how that layout is used.