9mm x 39mm Russian?

[Captain O]

Created during the 1980's, the 9x39 is a Russian cartridge capable of handling a 256-grain load (subsonic from a rifle-length barrel). This is a great "room-clearing" cartridge that can effectively penetrate 2.54" of steel plate with armor-piercing bullets.

I wonder how it would compare with the .300 "Blackout" with 158-grain .356" JHP or Lehigh type projectiles at higher velocities. In either an AR or AK platform, it would be sufficiently powerful for military and civilian applications at short-to-medium range hunting applications.

Comments? Opinions?

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[Boboclown]

Both exist to solve the same niche, sort of.

But you can't compare the two, not a lot of data on the 9x39 available and its not available to do a side by side comparison either.

 

[Kruel J]

Another virtually unavailable cartridge thread. And if it can penetrate 2.5" of steel, how does that make it a good "room clearing" round?

 

[Captain O]

Another virtually unavailable cartridge thread. And if it can penetrate 2.5" of steel, how does that make it a good "room clearing" round?

Using a lighter bullet with the appropriate load works fairly well. Since it is a gas-operated mechanism the system will likely self-adjust. They use heavier bullets at subsonic velocities to pierce steel. I can imagine that a lighter bullet at higher velocities would work extremely well in "room clearing" applications. (I tend to "think outside the box").

 

[Kruel J]

Using a lighter bullet with the appropriate load works fairly well. Since it is a gas-operated mechanism the system will likely self-adjust. They use heavier bullets at subsonic velocities to pierce steel. I can imagine that a lighter bullet at higher velocities would work extremely well in "room clearing" applications. (I tend to "think outside the box").

I agree that you do, but a room can be cleared with a full mag of modern caliber ammo that will cost you less than a mediocre burger after your mag runs dry.

 

[Certaindeaf]

9x19 is king. get used to it

I'm pretty sure ol' capn zero has me on ignore? lol

 

[Captain O]

I agree that you do, but a room can be cleared with a full mag of modern caliber ammo that will cost you less than a mediocre burger after your mag runs dry.

But who is cooking burgers? The 1980's creation of the 9 x 39 was a military expedient. A 259-grain. I was simply "noodling" about how a lighter, faster 9.25mm bullet would fare in a simple AK variant. The original load left the barrel at 925 fps yielding 485 fpe. I'm certain that there could be room for improvement.

 

[Kruel J]

Hey, I'm sure not gonna tell you your thoughts aren't interesting, but in today's world the caliber is all but gone. That's how things work, no sense in living in the past.

And I'm cooking the burgers, but my Traeger smoked cheese burgers stuffed with smoked gouda cheese, pastrami, BBQ sauce and fresh minced garlic topped with a slice of black label Tillamook sharp and peppered bacon could never be considered "mediocre"!

Patent pending.

 

[bbbass]

Got me all excited there for a few seconds....

 

[Captain O]

Hey, I'm sure not gonna tell you your thoughts aren't interesting, but in today's world the caliber is all but gone. That's how things work, no sense in living in the past.

And I'm cooking the burgers, but my Traeger smoked cheese burgers stuffed with smoked gouda cheese, pastrami, BBQ sauce and fresh minced garlic topped with a slice of black label Tillamook sharp and peppered bacon could never be considered "mediocre"!

Patent pending.

Well dog my cats and call me cornpone! I'll take two, no, make that three burgers. Lots of sliced onions, lettuce, dill pickles, and barbecue sauce, please!

 

[Kruel J]

Heck yes!!

 

[Certaindeaf]

But who is cooking burgers? The 1980's creation of the 9 x 39 was a military expedient. A 259-grain 2. I was simply "noodling" about how a lighter, faster 9.25mm bullet would fare in a simple AK variant. The original load left the barrel at 925 fps yielding 485 fpe. I'm certain that there could be room for improvement.

A good 9x19 loading makes 500+fpe out of a 4" barrel

 

[Kruel J]

A good 9x19 loading makes 500+fpe out of a 4" barrel

Try twice that, my friend.

 

[Certaindeaf]

Try twice that, my friend.

e energy?

 

[Kruel J]

e energy?

Whoops, missed FPE for FPS............

 

[Kruel J]

Stoopid internet experts. LOL!

 

[Certaindeaf]

Whoops, missed FPE for FPS............

cackle.. so easy to do with all our particulars..

 

[Kruel J]

 

[Boboclown]

Hey, I'm sure not gonna tell you your thoughts aren't interesting, but in today's world the caliber is all but gone. That's how things work, no sense in living in the past.

And I'm cooking the burgers, but my Traeger smoked cheese burgers stuffed with smoked gouda cheese, pastrami, BBQ sauce and fresh minced garlic topped with a slice of black label Tillamook sharp and peppered bacon could never be considered "mediocre"!

Patent pending.

... No, its not available here. Never was. Its not that its gone, its that its not available here. It is certainly not gone, just not here for us.

This is one of the guns chambered for 9x39.

 

[Kruel J]

... No, its not available here. Never was. Its not that its gone, its that its not available here. It is certainly not gone, just not here for us.
View attachment 394162
This is one of the guns chambered for 9x39.

Good post. Thanks Bobo. Any chance you wear a rug and call into a certain radio show?