That won't work. The 303 shoulder and body is fatter than the 7.62x39 one. You will smoosh your cases trying.
The collet die works well for a few firings until the brass starts springing back too much.
That won't work. The 303 shoulder and body is fatter than the 7.62x39 one. You will smoosh your cases trying.
The collet die works well for a few firings until the brass starts springing back too much.
Resident 6.5 Grendel aficionado.
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