Forming 7.62x39 from 30-06 = insanity!

[Buckshot]

.............Well I made a 25 ACP case from a 45-70 once. It involved a great big hammer and steel plate, an oxy-acetylene torch, a pound die, and a lathe.

I figured it wasn't worth it

...............Buckshot

[shotman]

i checked it with a mic there is .030 in size difference so it would not feed reliabley, if at all shotman

[NoDakJak]

Run a 303 Brit through a 7.62X39 full length die, trim to length and presto: a 7.62X39R case. A fine little cast boolit case in it's own right. You would need a lathe to turn the rim down to size and cut an extractor groove. By using the semi rimmed 220 Swift case the work is greatly diminished as the rim is much smaller. The 35 Remington is great. Just run through the sizer die and trim to length. Different ways to end up with the same case.
I have also used the 303 to make 6.5X53R and 6.5X54 cases. The 6.5X53R cases seem to be very hard to find and this method works well. Neil

[1hole]

"Either way '06 or 35 Rem brass squeezing down the .040" of head diameter is no picnic. Even if FREE. "

Roger that!

I was wondering if any reloader has ever tried to reduce the solid web/head of any round at all, even at few thousanths. Swaging a .473" head to .447" with a conventional press would be virtually impossible, with any die or set of dies.

It's certainly not worth the trouble it would entail, and for sure it's not worth it at the price of that die even if it was easy to do!