Desperate times - .380 ACP (.356) projectile in 9x19?

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Desperate times - .380 ACP (.356) projectile in 9x19?

Postby manithree » Mon 18 Feb 2013 11:52 am

I bought 400 Remington 124 MC .355 bullets today. The price wasn't that bad, but they were the only 9mm projectiles in stock at Gunnies.

But I was seriously tempted by the box of .380 ACP (.356 95g) hard cast Bumblebee bullets. Especially at $28/500. According to my Hornady manual they're both .355, Lee says they're both .356. So would these work to reload in 9x19? I'm willing to live with minor feeding issues with the different ogive for practice/plinkers.

Since I just started re-loading 9mm before the panic and hadn't had time to stock up, I'm a little shorter on supplies than I would like to be.

Is there any safety reason that I'm missing not to load these in 9x19? Has anybody used .380 ACP bullets in a 9x19? How did they feed?
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby muddy » Mon 18 Feb 2013 12:49 pm

The biggest issue with lead will be leading and if lead is loaded to normal factory rounds the leading can get bad. With lead its best to shoot .001 diameter bullet bigger than your barrel. Most guys that shoot lead seriously slug there barrel by driving a pure lead slug or fishing sinker down the barrel and then measuring the diameter. Bullets are then cast or bought at the right diameter. By shooting a good fitting bullet and using slower burn rate powders lead can be driven at factory velocities with no leading. Gas checks will also help with leading at higher velocities. Also lead hardness is a factor on barrel leading to hard a lead can lead a barrel worse than soft lead.

For your question, yes the .356 lead bullets you mentioned will shot out of your 9mm and the .356 diameter could just be the ticket if your barrel isn't oversized. What powder are you using and are you planning on a reduced lead load or driving them hard?
Depending on your firearm of choice you might want to do some research. Some Glocks for instance have polygonal rifling which has been blamed for leading and blowups but there is a lot of guys that shoot cast out of them. There was just a discussing on Castboolits.com the other day about this. Check out the Castboolits site as the guys there really know there lead.
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby manithree » Mon 18 Feb 2013 1:16 pm

muddy wrote:For your question, yes the .356 lead bullets you mentioned will shot out of your 9mm and the .356 diameter could just be the ticket if your barrel isn't oversized. What powder are you using and are you planning on a reduced lead load or driving them hard?


I've got Alliant #2, and I plan to use minimum loads. I don't know if I can get another powder right now.

I've shot lots of lead through my revolvers and my .40 (before I got rid of it). These will be for my CZ SP-01s or a SIG P250.

I think I'm going to run back over and buy a box. Thanks.
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby FrankenHollow » Mon 18 Feb 2013 2:51 pm

Diameter + acceptable weight = it'll work.

And, don't get too caught up in what diameter a bullet is supposed to be.
A few years back, AccurateShooter ran an article where they slugged the barrels of 70 different 9mms, 20+ .380s, and 25 .38/.357s. More than 70% of the 9mms had a groove diameter over .356". Anybody that has slugged the bores of their own firearms will tell you... that's not surprising. There are production tolerances, after all; and high volume manufacturers don't replace tooling until after the product is out of tolerance.

Buy bullets sized to work in your barrel - not a factory-perfect, ideally-sized barrel. Most of the time, they aren't ideal (especially handgun barrels).

And, just a minor note - BumbleBee's bullets are 'hard cast'. Use normal load work up procedures, but be prepared to push the bullets hard, to get best accuracy and minimize leading.
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby Hawk87 » Mon 18 Feb 2013 6:57 pm

I wouldn't shoot 380 ACP in a 9x19 gun. It seems like there would be a head space issue. The bullets are the same size, but I don't think that means you can shoot it.

I wouldn't do it.
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby muddy » Mon 18 Feb 2013 7:03 pm

What head space issue? They are the same diameter, auto pistols headspace off the case mouth and the bullet has nothing to do with it. [auto-filtered] you can buy 95 grain bullets that say they are 9mm bullets but they are no different then 95 grain bullets that say they are .380 caliber. How about shooting lead cast from a .358 mold in a 357, .380 and 9mm? With the proper sizing dies its no problem and if you have a 380 with a .357 bore diameter then a .358 sizing die works just fine so I am shooting 357 bullets out of my .380.
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby Hawk87 » Mon 18 Feb 2013 7:32 pm

I just re-read the post, I thought we were talking full cartridges here, not just projectiles. My bad. :oops:

I will get back in my lane now...
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby manithree » Wed 20 Feb 2013 12:21 pm

My son wanted to stop by Gunnies on the way home today, so I meandered over to the re-loading section, and they were really well stocked with Bumblebee bullets in a whole bunch of calibers, including stacks of 125gr 9mm. Oh well, I'm still going to load up the 95's I bought.
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby James » Thu 07 Mar 2013 4:46 pm

But I was seriously tempted by the box of .380 ACP (.356 95g) hard cast Bumblebee bullets. Especially at $28/500. According to my Hornady manual they're both .355, Lee says they're both .356. So would these work to reload in 9x19?


Yes!
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby MarshallDodge » Thu 07 Mar 2013 7:27 pm

The biggest issue you are going to have with the lightweight, lead .380 bullets is that you are going to have to push them hard to cycle an auto. This could cause barrel leading issues.
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby manithree » Sat 06 Apr 2013 8:14 pm

We've been shooting our 95g Bumblebee bullets over 4.2 grains of Accurate #2. Very accurate, soft, and clean. I'm becoming a Bumblebee fanboy.
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Re: Desperate times - .380 ACP (.356) projectile in 9x19?

Postby James » Thu 11 Apr 2013 6:31 pm

That's great. Thanks for the report.
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