Dems Exit polling shows that 3% of those participating in the Democratic were Mormons.
I'm guessing NONE of them voted for Romney (sarcasm intended).
With voting totals around 115,000 in the Dem race (I saw that number on Fox News) that would come out to approximately 3500 LDS voters NOT voting for ROmney.
By contrast, 25% of the GOP caucus in NV that were Mormon with nearly 45,000 total GOP voters --- therefore around 11250 LDS voters and 94% of them were for Romney . . . but that means nearly 500 were not.
So, 4000 LDS in Nevada voted "Not for Romney" and 10,750 voted for Romney. That breaks down to 73% LDS for Romney and 27% LDS that were not for Romney. Not quite the absolutely robotic block-voting groups that many media outlets are trying to play up.