I would think he owes you a complete rifle, or a refund in dollars of the value of a complete rifle.
I'd disagree. There are no guarantees when reboring, you don't know what you might run into when drill and rifle. He could've run into an inclusion or other unforseen issues. The fact that he bored & rifled to to 35 cal at least leaves a useable barrel.
On the whole, I'm not a huge fan of reboring unless the barrel in question is unique and not easily replicated. I have a 27" Octagon barrel with integral sights in 8x57. The bore is frosted and it shoots but I'll eventually have it rebored to 9,3mm.
