Rockchucker - RS3 vs RS

[RogueSniper]

I'm looking through eBay to maybe buy some dies and I see these RCBS presses. One said it's a RS3 and another one says they have a RS.

I've searched for threads on the forum and did some net searching - I'm only guessing this is just a designation of their next generation/revision of the venerable old Rockchucker. Is this the case? What changes/differences between the two? Thanks.

[smokingloon]

The one on the bottom has a priming tool.

[anyracoon]

The lower one is a RockChucker. The upper looks like a Junior model, not quite as heavy duty.

[Blacktail 8541]

The lower one is a RockChucker. The upper looks like a Junior model, not quite as heavy duty.

Negative, the lower press is a JUNIOR press, the top press is a Reoader special 3 press. This is their entry level press and is a very good single stage.

The Rock chuker is a heavier framed press that will stand up to swagging bullets and has been updated with a larger framed opening for loading the ultra mag cartridges.

ETA: The rockchucker replaced the junior.