crstrode,

Your first two and fourth pictures do not show defective S&W revolvers. They were negligently destroyed by over loaded cartridges. Distorted or ruptured cylinders and with extreme over loads blown off top straps are expected when too much fast burning powder is used in perfectly manufactured revolvers.

The failure of the Model 329's aluminum frame in your third picture is another matter. The first part in S&W revolvers to permanently distort from too high pressure is the cylinder and its cylinder looks undamaged. This is the first time I've seen a frame that separated like that 329.

The federal law usually called the Gun Control Act of 1968 (GCA 68) outlawed importing guns that were not suitable for sporting purposes. Congress left it up to bureaucrats to decide what guns were not suitable for sporting purposes. Since what some of us now call the legacy news media and liberal politicians had been campaigning to outlaw "Saturday night specials" ATF picked a point system that blocked importing small handguns. Many overseas manufacturers made new versions of their pocket pistols with longer barrels, over size thumb rest grips and adjustable sights so they'd be awarded enough good points to be allowed in. Manufacture of smaller pocket pistols like the .25 ACP Colt had been importing was moved to the United States. I suspect that you are confusing your memory of GCA 68 with international law. Taurus International Manufacturing Incorporated, also known as Taurus USA, manufactures guns in Florida.