In a [censored] spot with QQ, What do I do?

[Woolygimp]

5/5 Live 10-handed, effective stacks are $425. There's a straddle and a couple limpers, I make it $70 OTB with QQ.

SB has been playing extremely tight, and he immediately heads for his chips to raise. He then thinks, and then flats my bet. At the time I remember thinking that I'd put this guys range on JJ+, or maybe TT.

I end up getting a total of 6 callers.

$440 in the pot, and the flop is 6s 7s 7c. Checked to me.

I immediately push for $355, but pushing queens into 6 people on this board just doesn't mesh well, and SB's read compounds the issue. Maybe I'm playing too much Omaha, but does anyone ever, ever play this differently? I'm trying to work on multiway pots.