Home Forums Hunting & Shooting Hunting Rifles Kimber 35 Whelen never being made

So if I were to get a 30/06 rebored to Whelen how do they mark the new caliber on the barrel? Will it just be another stamp or do they take the old caliber markings off some how? I have a P64 M70 that was rechambered from 358 to 350 Rem Mag and the smith never marked it in any way.