User blog comment:Master Moridin/A (Potentially Unnecessary) Explanation for Inconsistent Ammo Count/@comment-26397825-20151107053015

I think in the case of Myrtesnaster, it's not crystals but powder. When she pulls the trigger, it releases a small amount of powder that she can then manipulate, and the amount of powder is reliant on how long she pulls the trigger for. It's more like a spray hose rather than a bullet system.