If I'm not mistaken 817M41 is the highest year mentioned in the Deathwatch core rulebook. Is there a default year that FFG has assumed in the RT product line? I realize that I can run an adventure in any year I choose, but I'm curious anyway. 
What is the backdrop year in the RT product line?
814-815 ish, each setting adds a few years to dark heresies 813 M41.
Thank you. I seem to recall having read it but I couldn't remember what sourcebook it was in.
From the Epoch Koronus Gazetteer:
816.M41
Current date line and the events of Forsaken Bounty, Dark Frontier, Into the Maw, etc.
Thanks for the clarification Errant!
Errant said:
From the Epoch Koronus Gazetteer:
816.M41
Current date line and the events of Forsaken Bounty, Dark Frontier, Into the Maw, etc.
Good to know. I had wondered this myself.