Setting back and rechambering is an opportunity to get it right. For all you know, this rechambering job would be better than the original. In all likelihood they were both very accurate.
Many competition shooters set back on a regular basis to restore optimum accuracy to guns that already shoot better than your caliber is even capable of. Jackie Schmidt sets back every 300 rounds. Thats every month or so. He wins a lot in short range benchrest.
If I had the capability of setting back my chamber, I would do it today. The smith should have just done it when he discovered the mistake. Gunsmiths regularly take a little more depth if that is what it takes to get it right.
The advice you were given to buy your own reamer is the best advice in the thread in my opinion.
Many competition shooters set back on a regular basis to restore optimum accuracy to guns that already shoot better than your caliber is even capable of. Jackie Schmidt sets back every 300 rounds. Thats every month or so. He wins a lot in short range benchrest.
If I had the capability of setting back my chamber, I would do it today. The smith should have just done it when he discovered the mistake. Gunsmiths regularly take a little more depth if that is what it takes to get it right.
The advice you were given to buy your own reamer is the best advice in the thread in my opinion.