Armor Piercing and Explosive Rounds Question

This is a good question, the rules as written when attacking and using special rounds leave this to interpretation. I intended that only 1 round can be used per attack. For carrying rounds they can be stored 10 in the small backpack, 5 in a belt slot (can be mixed by type). Weapon clips (the small icons at the end of the weapon's equip slot) can store 5 of each type (10 total) for one handed weapons, or 10 of each type (20 total) for two handed weapons as they use both equipment slots.