yes you can load 357 max shells with 357 mag dies. I think that rcbs even lists max on there box along with 357mag. the only problem that I had was that the seater plug will not fit a 180 hornady spire point ssp bullet very well. I did have rcbs make me a special one to fit this bullet. I contacted redding about there competion bullet seater die and they told me that it did fit the 180 spire point bullet just fine. might be another option. dave