Most multi pair telco type cable used is 24 - 26 awg. A typical slalom hill with fresh cable and boxes will ring out at 25-60 ohms. GS hill at 60=85, Super G - DH at 85-110 ohms.
Here is a handy table
Of course nothing is perfect and you results could vary. Remember too that cable stretches over time and the resistance values increase as the effective AWG decreases.