9mm die question

[Shootin'IN]

I'm new to reloading so bear with me.
My question is will one 9mm die set be able to be reset to reload 9x19mm to 9x17mm or will I need two separate die sets?

 

[Leo]

Two separate die sets, the base is smaller diameter on the 9 X 17 (.380)

 

[billybob44]

Shell holder different also..

I believe the .380 (9/17) uses a RCBS #10 shell holder (Same as .223/5.56). The 9/19 uses RCBS #16 shell holder...Bill.

 

[mdemetz]

Also the 380 is a straight wall while the 9mm Luger is tapered.

 

[Broom_jm]

As someone who loads both 380 and 9mm, let me just say that I am very glad that a 9x19 case will not fit into a 9x17 shell holder. Among other things, this is a good safety precaution against loading a 380 with 9mm data.