I hate JJ

[MyssGuy]

Here's a common dilemna for me and looking for some advice. (Background, I normally play 5/10 6max games and have tried to expand my experience in NLH MTT games.)

It's about 45 minutes into a Party $30 MTT. 600 of the 800 players left and I've got about 1k in chips (average is 1333). I get JJ in middle position and open-raise the 25/50 blinds 3x to 150. Tables been not tight/not loose. Raises will occasionaly take the blinds, other times, 3 or 4 to the flop with the same 3x raise.

My 3x BB raise is called by the button and no one else. Flop comes K72 rainbow. I lead out about T275 into a T375 pot. I think this is a good size bet. I'll let go to a raise, but should scare off (hopefully) QQ/JJ/1010/AQ type hands. Button calls (BTW, no reads).

Now I'm at a loss. I figure I've got to give this hand up if I don't hit a J on the turn. Correct? Ideas?

Turn comes another rag under a J. Am I check folding? Is this hand too good to let go HU?

Thanks for the input!

MyssGuy