Solid Brass Bullet? Not Bronze - Ever Seen One Before?

[P71Cemoto]

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This is a new one on me. This is a factory loaded brass round and it doesn't look like a jacket but I'm not an expert. A few of the armorers I've shown it to have never seen one.
When googled it I found only one reference for a brass round. This is a Winchester case in .40 S&W.

It came from a police instructor in a large quantity purchase of various factory fresh rounds I purchased as he is switching to 9mm. Officers from various departments would gift him ammo at the end of his classes as a tip and he kept them in a couple of large ammo boxes. I sent him a photo and he said WTF?

I thought maybe it is a defect but do not know . . . . .

Ever seen one before?

 

[GunnyGene]

Never even heard of it, but a flat nose brass bullet might be a good choice for penetrating glass and car doors.

 

[TheTexasRAT]

Lehigh Defense used to make some fluted solid brass bullets.

 

[DeletedMember275]

I believe that Magtech uses brass jacketed bullets in some of their ammo. I had a bunch of their 9mm ammo with them.

 

[NikA]

I'd bet money that's a jacketed bullet. Pull it down and see. Winchester makes both FMJ and TMJ .40 rounds with that bullet profile.

 

[mpddoug162]

They also came with exposed lead in the flat nose.

 

[contender]

Montana Gold makes bullets that appear to be brass.

Have you pulled a bullet to see if the base is open & filled with lead?

 

[P71Cemoto]

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Thanks guys for answering the question. I wasn't sure if it was some kind of defect as the brass is the same color as the case. Based on your responses brass jackets appear to be a thing.
I knew the brain trust would know. I'm going to fire it!

Al

 

[nekvermont]

Sellier & Bellot uses brass for their jackets. Here's a very cool factory tour video. 21 minutes long.

 

[contender]

Now I'll go a bit further.

There's a faction of people who make their own bullets (not the ammo) using spent brass shell casings as the jacket. It's a process called "swaging."
You take a case,, such as a 9mm,,, and anneal it to make it soft. then you add a lead core. You then run it through a die (sometimes two,) to compress the lead,, into the case,, and also expand the brass to say,, 10mm in OD. You then can form a point with another die.

Factories do this kinda in reverse to give you that solid looking nose. They take a brass or copper "cup" and insert lead,,, and press it into shape,, and fold the opening in. The lead is often visible on the base of the bullet, not the nose.

Another fun type of swaging is to take spent brass .22 LR cases,, and form them into .223 bullets by the same process.