Alan,
The Reloader Special 5's Frame is made from high-speed ectapoly chromate (Aluminum). The Rock Chucker's frame is made from Cast-Iron.
The RockChucker has the provision for the RCBS Auto Primer Feed. Both have Compound Leverage but the RockChucker has a sturdier attachment of the toggle arms at the press frame. Both have the upper bushing for larger die use. The Rockchucker appears to have a better setup for the primer arm than the RS5 to me. The RS5 Priming arm is the flip down type. The RS5 frame is offset for to the right for a better view of the cartridge.
To be honest, either press will suit you. Basically, two quality made presses with slightly different designs. If you plan on some heavy duty work, I'd get the Rockchucker. It will last you the rest of your life provided you don't use it for a wheel chock or something. The RS5 is a good tool also and if you plan on going to some more expensive press eventually, you could go with that for less cash outlay to begin with.
Assess you budgetary constraints and objectives and act accordingly.
How's that for double talk. :biggrin:
Regards
