$5.50 PS - holding 55 OOP with a KKK flop

[ubvol]

Does my bet work here? Am I just setting myself up to be owned by someone with 66 or 77? I'm thinking I can get away from this if I see a reraise, but I'm still letting people know that unless they have at least a full house, they ought not chase. other thoughts?

PokerStars Tournament, Big Blind is t50 (7 handed) Converter on pregopoker.com

Hero (t1480)
UTG+1 (t1815)
MP1 (t995)
CO (t1415)
Button (t1895)
SB (t2930)
BB (t2970)

Preflop: Hero is in UTG with 5[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/heart.gif[/img]
Hero calls t50, <font color="gray">UTG+1 folds</font>, <font color="red">MP1 raises to t100</font>, CO calls t100, <font color="gray">Button folds</font>, <font color="gray">SB folds</font>, BB calls t50, Hero calls t50

Flop: (t425) K[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/diamond.gif[/img] (4 players)
BB checks, <font color="red">Hero bets t300</font>, <font color="gray">MP1 folds</font>, <font color="gray">CO folds</font>, <font color="gray">BB folds</font>