A crit of 46929 on this one if you can't see it.
A crit of 43446 here(with 2x atk proc of 21723 and 13033, so a total of roughly 78k).
Both screenies were taken on dungeon mobs, so I'll try out some normal mobs tomorrow since they have way lower def.
Kinda surprised it does so much dmg now, it used to be worse than twin fang or swallow's glide, even with 5 charges @@.
Oh yeah and I had the lvl 60 yellow gun procced when I used BCS, then switched to 70 yellow once it procced for more damage.
Was using crit dmg talent (Sniping 4, Deathblow 4((30%), Bow Quickdraw 2 and Precision 3 which gives +13% crit dmg...talent combo gives +5% r-atk), and 9x +8% stones. And of course the master that gives +30% crit damage.
So that's a total of +105% r-atk and +145% crit damage with a base r-atk of around 5.5k with 70 gun (4.7k with 60 gun)
Hope this helps!
EDIT: Forgot about the cleric buff that gives +22% physical atk, so my crits in that dungeon aren't 100% me anyways lol. Also no sprite summoned