Actually, spear range should have range of 25-30.
Spears were a common and very effective weapon (next to bow) many years ago, looking back to Amazons or Troi fighters etc.
Look at todays javelin throw. I'm aware of the fact, that these spears are made to be light and throwable (lol), but I don't think they were that much modern in 1912, when Eric Lemming made frist javelin throw record - 62,32 metres.