For my regular hunting rig, my point-on is about 25 yards. My arrows for this setup are full-length carbons and about 640 gr off a 50# bow. If I'm at a 3D shoot, where distances are usually 25+ yards, I'll switch to an index finger anchor, which puts my point-on at 35 yards.
For my homemade bows, my gaps are smaller & point-ons shorter. My last one came in with a 20-yard point-on range for 28" wood shafts weighing in at just under 600 gr. and pulled with about 45# of draw weight.