Just dug out some 5083 that I normally cut at 0.4mm doc 800mm/m 15krpm. I took Jazzcnc advice about pushing it to see what your machine can handle and with a 6mm carbide(2 flute, 22k rpm and 800mm/m I have reached 1.5mm doc and it looks clean. I could probably push it a little more but I was getting sprayed with hot aluminium chips. It actually sounded better with the deeper doc.

Too bad the 1050 isn't 5083 :(