Wow. I thought this looked pretty cool! [Archive] - Glock Talk

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OregonG20
12-27-2011, 18:12
If this has been posted here before, sorry.

Use spent 9mm cases to make jacketed 10mm bullets. Here is a link to a longer discussion about it.

http://www.ar15.com/forums/t_6_42/322451_Turn_your_9mm_brass_into__40_SandW_hollow_points.html&page=1

http://www.realworldpracticalshooters.com/ar15/40from9.jpg

I just may give this a shot, just to see how it works!

Meathead9
12-27-2011, 18:23
I've seen it before, but it still looks pretty cool. I'd be interested in what kind of velocities and expansion they get. Being brass jacketed, like Montana Gold's, I'd be willing to bet that they will produce lower velocities than copper jacketed bullets like XTP's.

ponders
12-27-2011, 18:23
very interesting!!!!!!!!!!!!!:cool::cool::cool::cool::cool:

bustedknee
12-27-2011, 19:06
I love the idea but something smells.

1. The 9mm case is too small (not 40 cal).
2. We have before and after pics. What about the steps in between? Only 1 step?

OregonG20
12-27-2011, 19:25
Here is a pick of expansion, after being fired into wet newspaper.

http://www.realworldpracticalshooters.com/ar15/40buldge028.jpg

And here is the answer provided in the linked thread to the question bustedknee poses:

Originally Posted By Objekt:
What about the fact that a 9mm case is significantly smaller than .400" diameter, both at the rim and farther up the case? The diagram in my Lee reloading manual shows a case diameter of 0.391" at the web, just forward of the extractor groove.


Answer:
When you swage, the pressure causes the case to fill the cavity of the swaging die. So, you are actually using pressure to squash the case and make it swell. Plus the lead core is swelling inside the case from the hollow point tool going into it. For lack of a better way to describe it, it just works!

http://www.realworldpracticalshooters.com/ar15/40from9-002.jpg

arushus
12-27-2011, 21:29
finally, a decent use for the 9mm!

Burien
12-27-2011, 22:40
looks like a fun project

Reboot
01-02-2012, 01:05
Was there any mention of accuracy?

Christopher67
01-02-2012, 03:22
Interesting..

Opie 1 Kenopie
01-04-2012, 22:27
finally, a decent use for the 9mm!

Yes!!! I've been looking for something worthwhile about this round for a long time!

TKM
01-04-2012, 22:45
I want to see Grissom figure this one out.

Bonus points if he identifies both guns in less than an hour.:supergrin:

leeward419
01-05-2012, 04:43
finally, a decent use for the 9mm!
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LOL...good one!
Better than a 380,
380 better than 32,
32 betterr than 25
25 better than.......

That is really neat, there are some bullet making companies where you can buy the equipment for making your own swaged bullets from lead wire and 22 cases, for the 223
never had seen this before but wow, with price of bullets and all had seen the equipment for 223 cases made from 22lrs http://www.corbins.com/kit-224.htm

ck this out from their site re the brass-
Rimfire jackets are only about .010-.012 inches thick, made of 70% copper and 30% zinc. Most commercial jackets are around .018-.022 inches thick, and are made of 5% to 10% zinc with the balance copper. These two facts lower the friction of the rimfire jacket, so that it is actually easier on the barrel than a commercial jacket. Zinc lowers the co-efficient of friction, and the thin jacket engraves easier by the rifling. (Higher copper content alloys do not break up on impact as much as the rimfire cases, so they make better bullets for edible and dangerous game hunting. Rimfire cases tend to break up when they hit the ground, so they make better varmint bullets with far less richochet potential.)

Curious what the typical content of metals in the average 9mm case is