Lyman 311 & RCBS 311 top punch

[boho]

I need a Lyman 311 top punch. I found an RCBS 311and know it will fit my Lyman sizer. What I'm not sure of is if it for the same bullet design. The list on castpic shows the Lyman 311 for my mold but the RCBS column has no number. Are they the same punch?

[Slow Elk 45/70]

I would take my boolit and try it in the punch , smoke it if want and see for yourself...IMHO, good Luck and good casting