Look at the "Remember These" thread and you'll see what a Lee Loader is. What you are asking about is Lee loading presses. Different animal. If you buy the Lee Classic Cast press, it is cast iron and every bit as rigid as the other presses you mentioned, plus having a bigger throat and at less than half the price, especially if you catch a sale. Best single-stage press bargain available, IMHO.
If you go to their Classic Cast Turret Press, it is also rigid and you get more features, but it costs more, too. Your choice.
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