Yes, I do "shoot those things", and they shoot really well. Because I melt the cores into the jackets at 1,125 degrees F and let them "soak" overnight, the cores are bonded to the jacket, without the use of flux, which can really screw up your swaging dies, since it's an acid.
Those particular bullets work great in my Model 629 and Marlin and Winchester leveraction rifles. I wanted to shoot an elk with one from my 629 the year before last, but all the shots were over 200 yards, so there wasn't an opportunity.
Since taking those pictures, I've refined the process and the rim of the parent case is compressed even more, which results in a slightly shorter bullet. There are quite a few people swaging bullets from cartridge cases, and I was glad to finally find a use for all those .40's in the brass I buy from the club......
Sorry to hijack the thread, but the question was asked and deserved to be answered. Somewhere in this forum is a thread dedicated to this process and a lot of the questions are answered there.
Hope this helps.
Fred