It's a top loader so there's 3 steps to load one round. Push the lever up, insert a round, drop the lever, and repeat that 75 times. It's easy to load, just really time consuming. I like it better than a rear loader though(giggity).
@Jds556762 you weren't lying about loading this drum. I'll think twice before doing a 75rd mag dump, that's for damn sure! Ugh, gonna be soooooooo tempting with that ALG though.