Unnecessary errors cost the Bulls dearly as a determined, in-form Bristol Bears attack outmuscled them 6149 at Loftus on Saturday.
The visitors scored four tries in the first 15 minutes, another three before the half-time whistle, and two more in the second half to ultimately beat a fighting Bulls nine tries to seven.
The Bulls fought back from 47-28 at half-time, scoring three tries in the second half despite a yellow card. But as entertaining as the match was, the Bulls third consecutive defeat in the tournament only left them with a sliver of hope of progression thanks to their losing bonus point.