Ive tried it, it didn't work so hot. I love reloading 357 sig and do it weekly as I blast out 300 rnds per week on it.
With as much time as it consumed and with the poor quality it was worth it to wait for the special from midwayusa.com for 500 357 Sig bras once fired for $12
I have a pretty high retrieval rate (80 percent or so) so that 500 has mad it's rounds and saved me alot of money.
I still don't see why cannibalism is a crime.