De Rimming 32 ACP Brass

[Johnch]

I just got off the phone with a friend
He has a machine shop
He lets me use a few Million $$ in tools after hours or when HE wants something
This both saves me $$ as I can make a mold or Swaging part
But it also cost me $$ as I spend extra to use some of the things I make

OK both he and I have been collecting brass cases for years to use or convert

He wants to use berdan primed 32 ACP brass to make jackets
Not sure what for

But he ask the best way to de rim the 32 ACP brass ?
I figure I would ask before calling him back

I know he could use a lathe and turn the rim off

But could he also swage the rim off ?
Anneal the case and then push the case base first through a die ?
As I figure he will need at least 1 pass through a die to reduce the diameter before he swages the bullets

Thanks
John

[Kosh75287]

If the cases were boxer-primed, I'D suggest you try to deprime then swage them. The empty primer pocket might engender enough "give" in the case head that it would work through a swaging die easily enough. The Berdan-primed ones are probably best turned, unless one of you has a Berdan deprimer.
On the other hand, I'M not a machinist, so I don't really know what y'all's capabilities are.

[Soundguy]

End mill will eat a berdan primer and anvil out.

[skeettx]

Should be not problem to make up a punch die and rod to remove the rim from 32 ACP

https://en.wikipedia.org/wiki/.32_ACP

Should make an oversized gas check for .338 bullets.

I would go the other direction and leave the rim and expand the body
to make 9mm or 38 Special bullets

In either option, leave the spent primers in the case.

Mike

[elk hunter]

If you remove the primer and use the rim area as the base of a swaged bullet you will have the gas acting on the base of the lead core and possibly pushing it out of the jacket leaving the jacket in the bore of the gun. May not happen but what if it does?

Just my overpriced $0.02 worth.

[elmacgyver0]

This is kind of confusing.
I don't mean to be condescending so please don't take it that way.
Someone that has a machine shop with millions in tools in it can't figure out how to remove a little brass from the rim of a .32 ACP case?
I kind of scratch my head on that one.

[rancher1913]

just anneal the case and swag it to the size you want, i do it all the time with 380 turning it into 357mag pills

[Johnch]

This is kind of confusing.
I don't mean to be condescending so please don't take it that way.
Someone that has a machine shop with millions in tools in it can't figure out how to remove a little brass from the rim of a .32 ACP case?
I kind of scratch my head on that one.

He was asking if I knew of a better idea
As he was planning of just turning the rim off
With a lathe
But he was talking of just removing the OD of the rim down to the case
Leaving the base of the case and old primer alone

John

[Whiterabbit]

This is kind of confusing.
I don't mean to be condescending so please don't take it that way.
Someone that has a machine shop with millions in tools in it can't figure out how to remove a little brass from the rim of a .32 ACP case?
I kind of scratch my head on that one.

Sometimes it works that way when you have too many resources at your disposal. Like the nasa space pen, the obvious solution when you have unlimited funding and the best tech of the day. For those who didn’t, they came up with the simpler solution right?

You ever talk to someone who was WAY overcomplicating something, and say “why didn’t you just do it this other way? Much easier!” … I bet you’vs said that to someone in your life

[midnight]

You should be able to shear the rim off. I have a set of two dies to shear rims off of 30-30 cases for making 416 jackets. The first die sizes the case bodies to a uniform diameter & the second shears the rim off. You end up with cases with no rims & a bunch of cute little brass washers. I think one of the Corbins made the die set. I used one of my Walnut Hill presses & they sheared quite easily.

Bob