After reloading any weapon magazine (so cannot test actual numbers about regular crossbow), hitting dummies with them (both regular and armored) provides damage number lower on 1st magazine shot, meaning blessed shot crit is lower then it is suposed to, and that non blessed 1st shot after reload do less damage then next one.
Also noticed that Blessed Shot crit damage numbers are lower then regular crits number on some ocasions.
Tested with Thithetaker lvl 5 tallent, diferent lvl 10 talents, enhance power 15 talent, diferent lvl 20 talents, job well done lvl 25 and Double-shotted lvl 30
Edit: Tested with Saltz other career and same issue happens
Edit 2: Tested with Merc Kruber Repeater and Kerrilian Shade Repeater and same behavior happens
Can provide more info if needed