Thirty-some years ago I struggled and sized to reform 375WIN out of .30-30 brass, using trial-by-error to figure a way to expand the case mouths. In return, Dad mounted peep sights on his new Big Bore 94 I wanted to carry out in the Alaska woods for bear protection. I ended up with fifty cases and about half-a-dozen casualities after the first firing. The chase was as fun as the catch when I got home from the range, and the resized cases out of the RCBS tumbler. We are in a golden age of reloading where we can throw a credit card number over the phone lines and get new brass like this.
Now, I remember when I bought 500 .45 Colt cases five years ago. My Mother-in-Law took delivery of the small box, insisting I should send the package back and report all the broken pieces damaged in shipment...