User blog comment:EmBELLEm/After the Fall Preview info/@comment-35455126-20190505230525/@comment-26018514-20190506041815

It could indicate Coco has a massive aura reserve she's proficient at compressing to very precise sizes too, so it may be that her brick of a handbag was only able to smack around Ursa's like toys because of the volume of aura normally stored within the bullets being concentrated on the outside, alternatively it may be possible she stores aura in bullets during downtime.