Curling 275, with no collars and the weights do not move at all. And he's using a decent amount of swinging yet the weights stay perfectly in place.
He sets the weight down and the weights sound real, but as he sets the weights down on the rack they again move very oddly.
Second set we see the same weight, 275, but the 25# plate is now on backwards. He does a drop set this time around (which we do not see on the first set) so one could surmise that he did one on the first set yet we don't see it.
I'm calling fake, using the same plates as his 600# bench.