hit on natural 20: (3d20)[16][3][4](23)
Damage: (9d8)[8][8][2][3][8][6][4][3][5](47)

okay vs. Cora's
Reflex Defense 13 ( not sure how much cover is providing )
Damage Threshold 19
HP: 20/20

I presume the 16 to hit unless told otherwise
only problem with doing the damage the way you did it does not delineate the 3 separate shots
for example I could presume the damage to be the last 3 for a total of 12
or it could be the 1st 3 for a total of 18