I dropped my press..

I wouldn’t think it’d be ruined. I’d worry more about your concrete.
A visual inspection should tell you where it hit and if there was any serious damage other than a paint chip. Mount it up and operate it and see if the ram travels smoothly. As far as alignment of the ram goes, a rough test would be to screw in a die and see if the ram approaches in the center and touches the bottom of the die at the circumference. None of this is precision testing but close enough. I’d seriously doubt it’d be cracked, but, there is the warranty.

1) Does the ram still go up/down smoothly ?

2) Does a case in the shell holder still hit the center of the die ?

If so, then other items like the primer feed may have been damaged, but the press is OK.

If it is an older RCBS your concrete floor is the loser in this round they are almost bullet proof unless you nicked the ram and it is highly unlikely that happened then the only real concern would be the arm connecting the ram to the handle which is cast and might have taken a healthy ding as this is the weakest point of the press.

Look it over carefully. I do not see how it could possibly be damaged. If it is please show us a picture.

Sorry about your floor. The press is built like a tank. Not one of the old Soviet tanks where the top blows off, one of the good American ones. Kidding aside, they are one tough press. Just check is over carefully.

Be glad it didn't land on your toes.

Try not to do that again.

Next time it will land on your foot, and you'll be on crutches.

Its hard to work a press without two good feet.

If there is no visible failure of the press, the press is fine.

The point of impact/contact (of the press) to the concrete would determine the likely hood of damage to the press.
Without that information it is hard to determine if any damage happened.
That said, there are tests that can determine the alignment/function of the press and some have been mentioned in other posts here.
jmo,
.

I hope your floor is ok. repairing concrete is messy

If it still works its not ruined.
You.need.to load some ammo with it

Short of a direct nuclear strike I can't imagine just dropping an RCBS press on a cement floor would actually damage it. Good thing it did not land on your foot. That would have been a disaster. As long as the press works make some ammo!

Cast Iron will break before it bends because it's brittle. If it isn't cracked or other wise visibly broken, then there is no damage.

Contact RCBS.

Like others said you are very fortunate it didn’t hit you.

I dropped my Lee cast aluminum and it didn’t get damaged except the plastic arm for the safety prime. So I doubt if yours is hurt too badly.

If the ram operates smoothly, the press should be good to go. I pity your floor, though.