I think that the A4 or Big Max is the beefiest press RCBS ever made. I like it because it is turned around and
lets you tilt it backwards. You can set it up so gravitity will let sized brass fall back into a bin. Unfortunately, it wasn't a big seller and RCBS dropped idt from the line after only being available for a short time. The RC Supreme looks like a very strong press. I'm assuming it's cast iron and not aluminum.