Impressive, My buddy at 32 and 6’ 240 natural with nothing has done 495 for 20 and 605 for 10 he’s an absolute beast. Just yesterday he did 325 bench for 24 reps and paused the last rep. He’s an animal.
Your friend is VERY strong! Well done indeed!
I've done mutiple sets of 20 with 515 and 535 followed by 585 for 5. 225 for 100 reps. 315 or 300 (?) for 50 reps. 700lbs vertical leg press for 50 reps. 225lb leg extension for 100 reps and I broke the leg extention machine at 10+ reps with approx. 750lbs. Humbled two San Diego Chargers on the squat one day.
In my early 50s I could still do multiple sets of 20 with 400+ on the bar. Not any more.
And I never could bench press for beans. Or dead lift for that matter.
But as his holines Monsignor bhanky tells us the past ain't now.

Just memories but they are true and all mine. I weighed 250lbs at 6' 1.5" or so.