I bought a S&W 544 when it was introduced in the mid 1980's. The 44-40 round intrigued me. I picked up a 1000 new Remington cases. The first thing I noticed about the cases was there wasn't much of a bottleneck compared to factory loaded ammo. I loaded about a 100 rounds and when I put them in the gun, the cylinder wouldn't turn properly. I thought there was something wrong with the gun. Turned out that the RCBS dies I was using would not fully form the bottleneck on the new cases. I could fire them one at a time and that would fire-form the cases. Then they could be loaded with the proper bottleneck. Perhaps I got a bad batch of Remington cases.