it says on the MTM chart that the RMLD-50 and the H50-R-MAG will fit both bullet tip up or down.
hope this helps.
... BOOM!
Thanks for the advice guys.
The Max OAL of a RSS-50 of 2.5", SAAMI specs for short cases is 2.47 to 2.51 so in reality it shouldn't be listed as compatible... add into the mix the longer brass and there is no chance of them fitting!
Andy