I used the Dremel reference somewhat tongue in cheek. A backyard "gunsmith" I once visited used a Dremel for his work. He claimed no one admits to using them, but "everyone does"!

Myself having zero skills I might too. I've got a Dremel, but it's still in the box.

Regarding Sabattis as Matt and others have said, they do seem to work. And are relatively cheap. I would consider buying one if it was the right chambering and something I felt I needed. BUT NOT A MUZZLE BUTCHERED SABATTI.

Regarding gunmakers reputations they are easy to damage. Rigby for example desiring maintaining a good reputation stopped taking orders for their at the time new Riding Bite action double rifles, when they reached thirty orders. I believe they considered that three years of work. They didn't want customers having to wait years and become impatient. As Colin/Ahmed might tell you three years is a short time to wait from the likes of Purdey, Boss, H&H and other quality British gunmakers. Verney-Carron, Heym etc might take a year or two (?) to fulfill an order.

Regulation of a new set of barrels is a lengthy time consuming task. There aren't any short except for self adjustable separated barrels. Those self regulation double rifles are cheaper.

It's not really an excuse to take a large order, one that isn't possible to fulfill. And then take shoddy shortcuts such as grinding the muzzles to attempt some sort of matching the point of impact from each barrel. Which from the many dissatisfied buyers reports simply did not work. How aweful to outlay several thousand dollars for one of these and end up with a worthless expensive wall decoration. Or pass it on to another sucker.

If the grinding of the muzzles worked I'm still to see it reported, and not by some one trying to sell that rifle.

Yes hopefully Sabatti now produces double rifles without any other shortcuts. Reputation takes a long time to build, evaporates very quickly.

Those guys with a working properly regulated Sabatti, good luck to them. If it works, it works. I'd want to see a test target for one I'd buy and preferably test shoot it myself. Same as many a double rifle. The higher the price, more reason to test shoot it. Or on the basis of reputation. A high quality brand expensive rifle could have the barrels properly reregulated if changing loads doesn't work well enough. But not worth it for a "cheapie". Many old vintage rifles can suffer from this.

Just my thoughts.