Wilson 6XC seater dies ??

[highlife]

I was looking on Sinclair website found out they offer two styles
of the 6XC seater dies ? What's the difference between the oversize and the other? Want to make sure I order the right one.
Any knowledge of this would help.
Richard

 

[Nik]

Hi, I made the same enquiry last week regarding my factory rifle in 6XC and was informed that the oversized is the one for me. The other one is for custom chamber.