The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Reply
 
Thread Tools
Old February 5, 2013, 10:04 PM   #1
nova609
Member
 
Join Date: November 15, 2009
Posts: 22
9mm vs. 380 brass

I may have a problem but not sure....

I just bought 1000pcs of .380 brass (once fired, cleaned, resized). As I'm going through the box and checking case lengths, I am noticing quite a few 9mm cases mixed in. Now from what I read, the 9mm and .380 take the same diameter bullet, and from what I have noticed with the 20-30 9mm cases I have found, they are below the .380 max case lenght. Like they have been necked down or something.

Should I be concerned or just load them as I would the rest of the .380 cases since they fall into the parameters of the .380.

Or is there something about a 9mm piece of brass that should be of concern? I am still pretty "green" at this reloading and pride myself in being super super cautious. Thanks!
nova609 is offline  
Old February 5, 2013, 10:19 PM   #2
j357
Senior Member
 
Join Date: January 25, 2009
Location: Liberty Twp, OH
Posts: 222
Set them to the side until you learn more about them, most likely they have been trimmed down to 9X18 Makarov. Do not load them for 380.
j357 is offline  
Old February 5, 2013, 11:40 PM   #3
Texas Range Ammo
Member
 
Join Date: January 23, 2013
Location: North Central Texas
Posts: 18
weird brass

I would pitch them.

in your statement you did mix terms in the description<<<<< you mentioned that they may have been necked down, and then referred to case length,,,

If they were trimmed or cut down,, it would reduce length,,,

If they were "necked" down, they would have a smaller diameter.


anyway,,, it's not worth the potential problems to fiddle with them,,, and who knows why somebody would invest the time to alter 9mm cases to work in 380.

The case specs are pretty much identical other than case length.

When reloading, always remember, conservative is better. Why take the risk ? You spent good money on,,,,, the reloading equipment, your gun,,,, and you and your parts aren't replaceable conveniently !!

Good Reloading,,

keep shootin straight
Texas Range Ammo is offline  
Old February 5, 2013, 11:58 PM   #4
dacaur
Senior Member
 
Join Date: March 16, 2010
Posts: 733
A .380 case does NOT have the same dimensions as a 9mm case trimed to the same length. Just that fact that they use different shell holders reloading tells me they are not interchangable. 9mm case head is .02" bigger, likley it wont even fit in the gun if you tried.....
dacaur is offline  
Old February 6, 2013, 02:41 AM   #5
cheezhed
Senior Member
 
Join Date: November 28, 2007
Posts: 286
Are they marked 9mm Kurz if so this is the same as .380. I picked up some brass marked like this it was some foreign brand.
cheezhed is offline  
Old February 6, 2013, 02:55 AM   #6
chris in va
Senior Member
 
Join Date: December 26, 2004
Location: Louisville KY
Posts: 12,542
It's super easy to get a few 9mm mixed in. Just toss them.
chris in va is offline  
Old February 6, 2013, 04:25 AM   #7
Sevens
Senior Member
 
Join Date: July 28, 2007
Location: Central Ohio
Posts: 8,905
Quote:
Are they marked 9mm Kurz if so this is the same as .380. I picked up some brass marked like this it was some foreign brand.
I would venture a guess that THIS is what's going on here.

Is the brass stamped 9mm BR short?
That's what Sellier & Bellot stamps on their .380 Auto brass.

If that's the case... it's perfectly good.
__________________
Attention Brass rats and other reloaders: I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.
Sevens is offline  
Old February 6, 2013, 09:23 AM   #8
nova609
Member
 
Join Date: November 15, 2009
Posts: 22
I apologize for the "necked" comment...I did mean trimmed.

I guess I will contact the seller and express my concern, especially if you guys are saying to pitch the 9mm cases, since after checking about 100 of em and I have come across about 20 9mm's...at this rate that's 20%, which I did not receive a 20% discount.
nova609 is offline  
Old February 6, 2013, 09:34 AM   #9
Jim Watson
Senior Member
 
Join Date: October 25, 2001
Location: Alabama
Posts: 11,177
Yes, that is a ripoff.

The 9mm P is larger diameter than .380 and pretty strongly tapered, You can't cut it down. (Although you can make 9mm Makarov that way.)

I get the occasional .380 mixed in with "once fired" 9mm or even my own range pickup. The 9mm sizing die does not even touch it and the press handle slams to the bottom with no resistance if I do not spot the difference when I pick up a .380.
Jim Watson is online now  
Old February 6, 2013, 01:33 PM   #10
mikld
Senior Member
 
Join Date: February 7, 2009
Location: Southern Oregon!
Posts: 1,108
Way back when, you could get 9mm Browning, 9mm Kutrz, 9mm Short, 9mm Corto and 9x17 relatively cheap an shoot them in your .380 ACP I've still got a couple boxes of 9mm Corto...
__________________
My Anchor is holding fast!
mikld is offline  
Old February 6, 2013, 02:43 PM   #11
nova609
Member
 
Join Date: November 15, 2009
Posts: 22
Well I guess I'll just throw em in the trash....I'm way to nervous about taking a chance on something, especially with only 6months of reloading under my belt....Heck I've probly thrown brass away that you guys would laugh at just because it looked funny....
nova609 is offline  
Old February 6, 2013, 04:17 PM   #12
5R milspec
Senior Member
 
Join Date: December 11, 2009
Location: South Carolina
Posts: 360
NO NO not in th trash,make you a brass bucket,then when full take it to the scrap yard for money.
__________________
life is great but its better when you can own as many guns you wish to own.for me I haven't bought enough yet.
5R milspec is offline  
Old February 6, 2013, 05:58 PM   #13
jib
Member
 
Join Date: May 31, 2012
Location: Seattle-ish
Posts: 58
Just put the other caliber brass aside and trade it later with other guys for more of the brass you want.
jib is offline  
Old February 6, 2013, 08:17 PM   #14
nova609
Member
 
Join Date: November 15, 2009
Posts: 22
Sevens...just got home and was able to check out the head stamps on the 9mm cases and you hit it on the head...they are stamped "9mm Br.C. S&B"..you the man!

Can anyone else confirm that it is ok to treat these as .380 when loading? (no offense sevens, just the OCD in me).
nova609 is offline  
Old February 6, 2013, 08:41 PM   #15
rfdillon
Member
 
Join Date: April 8, 2007
Location: Houston, TX
Posts: 52
Yes, this is S&B .380 brass.
rfdillon is offline  
Old February 7, 2013, 01:38 PM   #16
Sevens
Senior Member
 
Join Date: July 28, 2007
Location: Central Ohio
Posts: 8,905
No offense -- and getting second and third opinions is a GOOD habit to get in to, keep that in mind when you go searching for load data.
__________________
Attention Brass rats and other reloaders: I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.
Sevens is offline  
Old February 7, 2013, 05:07 PM   #17
nova609
Member
 
Join Date: November 15, 2009
Posts: 22
I guess I'm left wondering, how come the S&B 9mm brass works with .380 and other 9mm brass doesn't?
nova609 is offline  
Old February 7, 2013, 09:04 PM   #18
dacaur
Senior Member
 
Join Date: March 16, 2010
Posts: 733
Quote:
I guess I'm left wondering, how come the S&B 9mm brass works with .380 and other 9mm brass doesn't?
Because its not 9mm LUGER brass, its 9 mm BRowning Court (9mm br.c), which is another name for .380 auto. Kinda like how you find some 9mm luger brass that says 9x19, its the same thing, just a different name.
dacaur is offline  
Old February 7, 2013, 09:14 PM   #19
ScottRiqui
Senior Member
 
Join Date: January 27, 2010
Location: Norfolk, VA
Posts: 2,905
Yep - dacaur is right. There's a lot of "9mm" ammo out there, and it's not all the same.

The most common is "9mm Luger", which is the same as "9x19mm" or "9mm parabellum"

Then there's "9 mm Makarov", also known as "9×18mm" or "9x18mm Soviet"

You're reloading .380 ACP, which is the same as ".380 Auto", "9mm Browning", "9mm Corto", "9mm Kurz", "9mm Short", and "9×17mm".
ScottRiqui is offline  
Old February 7, 2013, 09:53 PM   #20
nova609
Member
 
Join Date: November 15, 2009
Posts: 22
Well once again the firing line comes through for me, you guys are awesome and your help is greatly appreciated by this beginner!!!!!!

Happy shooting!
nova609 is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:30 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.10662 seconds with 7 queries