It’s not too hard to keep track of in Shadowrun, and running out of ammo can lead to tense moments. Especially since you’re gonna be using a multitude of types, depending on what you make. Like you’re not carrying around hundreds of rockets for a missile launcher on your person. But you might have a few hundred+ round magazines for an SMG or rifle, as well as a side arm. Limiting how often you can blow shit up, but generous with the small arms that can still clear a room in a turn or two.