2000 fps 50 grain 9mm liberty ultra ammo

bandit86

bandit86

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The sheer speed- 2000fps- 9mm seems nice. Ever since playing with a tt33 I have wondered if a faster lighter projectile would be worth it. A solid lead bullet would break apart on impact and splatter like a shot load.

This would of course bring the 9mm VS 45 argument to a whole new level.
 
You can get 90gr 9mm (actually .380) bullet going at ~1500fps. Why would you wanna go any lighter? 50gr is it hollowed out or just really short? Lighter bullets loose momentum quicker and tend to penetrate less.
 
When I started shooting handguns, the Illinois State Police issued the Federal 95 grain JSP load. The bullet was a semi jacketed 95 grain bullet at I believe 1400 FPS in a service barrel. It was quickly replaced by the 115 hollow point, because the HP was heavier, penetrated better and still opened up. If you want to read the gospel of the light/fast handgun bullet faith, you need to read the (now mostly discredited) Ed Sanow/Evan Marshall report on handgun effectiveness. Looks good on paper, but the concept doesn't work.
 
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A 50 grain 9mm bullet travelling at 2000 fps is quite astounding, however the question would be its practicality.
 
I would think a fast bullet with very poor cross-sectional density has very limited short range applications.
 
tekarra said:
A 50 grain 9mm bullet travelling at 2000 fps is quite astounding, however the question would be its practicality.
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No practicality short of big holes in little coyotes to let in more light.

Because we can, and we don't know until we try.

actually the real reason is that muzzle energy is more with a faster lighter bullet, if I remember correctly it's mass times velocity squared.
 
plinker 777 said:
Plinker 777...thread derailment is his specialty. :)
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I guess we haven't met... CN hates when I get near any of their trains... things tend to derail around me like crazy

Red_Liner740 said:
Flatter shooting trajectory would be the only benefit I can see.
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plus snappier recoil for those that want to have something 'fun' to shot, saves them money buying a gun that shoots larger, heavier recoiling guns...
 
The 9mm has been around for more than 100 years and a 50 gr bullet has not caught on because:

a. no-one though of it; or
b. it's been tried and had no useful purpose.

I choose "b".

You can easily make a light 9mm bullet by simply placing a gas check upside-down in a lube groove and casting away. The Lee 158 gr 358 gas check design is a good choice:

p-21.jpg



Why not try it and prove again that it's not practical?
 
Because the paper targets will really care if they are hit by a smaller and faster bullet? And just how much bullet drop do you think you get in the maybe 25 yards we normally shoot handguns? Even at 50 yards I've found that I simply need to aim at the upper edge of the target.

As for bullet energy there are LOTS of threads out on the web where folks say that speed^2 x mass does not tell the whole story. And that sort of applies. A 55gn .223 moving along at around 4000fps goes in but often fails to come out. Meanwhile a 405gn 45-70 loafing along at a lazy 1300fps has a good reputation for passing clear through a buffalo and burying itself deep in the dirt on the other side. The light penetration is why .223 is now popular for CQB work by police. It's giving them far less risk of over penetration into other parts of the buildings.

I'm seeing this in my match shooting. I've been using my revolver with 125gn .38Spl loads. And I have to hit the falling plates and falling activators in the "head" to get them to tip. I still need to try it but I'm confident that going to the heavier 158gn bullet and hitting them in the "chest" will knock them down with more authority.

It's likely got something to do with the fact that bullets are not ball bearings. How they transfer the energy as the bullet is deformed and flakes apart counts for as much or more than some speed.
 
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