ok im new to this section. i am always in the bowhunting or fishing sections. well anyways i have used autoloader shotguns and have a bunch of rifles. but i wanna be safe on this one. i am borrowing my grandpa's pump mossberg 590 to shoot skeet and trap this weekend. i know how to do it all but i am not sure on loading the gun. i know how to but i am not sure on loading more than one at a time. the gun holds 9 plus 4 in the stock but i will not be loading more than 2 shots at once. so any help would be nice. and i know this gun is light-weight and short barrel equals bruises