the main difference between the lee classic cast and the rcbs rock chucker, aside from the salesmans bullchit is that the rockchucker handle over cantilevers and the lee classic cast doesn't making the rockchucker no good for lee deluxe collet dies unless you change the setup
the lee classic cast will do anything the rockchucker will and as said is built like a brick sh!thouse,
the lee classic cast ram is not a sloppy fit like with some other big name presses
they are made from old railway tracks or they were, I cant find that info anymore
IMHO save some money and buy the lee
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