Why is this happening

Hi to all I just wanted to ask does this look like a nutrient burn to you or not. And if not what the fuck is it...

Doesn't look like nute burn looks more like either heat or over watering to me.
Nute burn almost exclusively starts with a browning of the leaf edges, this is a curling/dying off of the leaf tip.

That looks like a heat burn, did you water in the middle of the day? Water scalds the leaves really bad if you do that~