I would expect it to sound really hollow. I would also expect it to wear out to the point of useless pretty quickly. Antler is only solid for 'so deep'. Then, its marrow structure like any other larger/long bone.
It would be more worth your time to do something with a more normal material tip.
Also, working antler is VERY stinky and protect your lungs well from the dust. Remember it was once living bio animal product.