Check out this squat compilation by Australian strongman Warrick Brant.
After 320kg front squat for 2 he finishes the video with a 350 kg front squat!
Thanks to Janis for submitting this.
Update: Thanks to Everett in the comments for bringing his 355kg Front Squat to my attention.
Everett says
This isn’t even his heaviest front squat. He has also posted a video of 355 kgs.
GregorATG says
Damn, you’re right. Hidden behind this weird unit “lbs” … No wonder I didn’t see it,
What a beast.