4 handed effective stacks 700k, 20k/40k blinds.

BTN has been playing extremely tight, not really capable of mixing it up and has a straight forward play. Min raises button to 80k I flat 78o OOBB.

Flop Qd8c6c I check call 100k 

Turn Qc, I check thinking he is only going to bet to protect his made hands. If he has a queen I really don't think he bets he either trys to get me to bluff river or levels himself into thinking I could have had a flush draw. Not sure what level thinking he was on but bet 150k with 350ish behind. I jam. Thoughts on the best play here?