Resizing 30.378 weatherby down to 7mm or 8mm

[Chamberman]

where can I get a die

Where can I get a die and what caliber is the die called and would u mind giving me a lil insight of ballistic

Call Richie at Silent Arsenal in Virginia.

He has the 7-378 down to a science.

 

[JamesWilson5]

OK thanks