crankshaft out of round

Yes it's possible. There are several factors at play.

Thank You

Can you tell me some reason, I don't want this happened again.  

It could depend on several factors. How the prop hit (just the tips vs the entire prop wiped out) what prop Mfg, rpm at strike, what did it hit, did the engine keep running or did it come to a stop, gearbox clutch clogged with lead from 100LL, age of the engine, ect...

the propeller was MT 3 blade after touching the ground , engine stopped and more than half of two blade is destroyed and one blade is ok 

the TBO of engine is 1500 hr.    and they don't use 100LL 

thank you,

Hi all

Just to be sure remove the crankshaft drive gear retaining nut and then recheck your readings.  Be sure to have at least one spark plug removed from each cylinder when you do the rotation to avoid compression  build up causing erroneous readings.  

If the crankshaft reads within the limits with the nut removed the problem is the retainer friction washer.  Replace with new and be sure when installing you center the washer as you tighten the nut on torquing.  Check again.  The hollow crankshaft is influenced by even the slightest misalignment of the nut and friction washer.  

Be sure to also complete the crankshaft twist check that is shown in the heavy maintenance manual.  If you have sent enough shock into the crank it is possible that one of the pins has slipped.  

Cheers