The Firing Line Forums

Go Back   The Firing Line Forums > The Conference Center > General Discussion Forum

Thread Tools Search this Thread
Old August 30, 2013, 05:16 AM   #1
rotten mick
Join Date: August 28, 2013
Posts: 74
liberty USM4 9mm ammo. Anyone?

Liberty USM4.
Been seening this online and a few places in town. 50gr copper frang ammo. Claims 1800fps or better out of a 4" barrel with 12"-15" gel penetration and 4"-5" cavity. While I'm not a fan.... scratch that... I dont like frang ammo as SD, this stuff got me interested.
Any of you tried or thinking about trying it?
"There are three kinds of men:
The ones that learn by reading.
The few who learn by observation.
The rest of them have to touch an electric fence"..... Will Rogers.
rotten mick is offline  
Old August 30, 2013, 10:01 AM   #2
Senior Member
Join Date: April 19, 2012
Location: Western PA
Posts: 3,517
I don't know much about that ammo per se, but it looks like just another one of those "super" loads that pushes a lightweight, frangible bullet at very high velocities and appears to perform well in ballistics gel tests, but not always in the real world.

There's a couple of problems with those. First, the bullet is often made from a pressed-together materiel so it will fragment in soft tissue or through walls. But this materiel is also usually much more susceptible to moisture: I had a friend who carried some RCBD ammo for about a year and when he went to shoot it his gun blew up after four rounds. It turned out that moisture had infiltrated the case and caused the kaboom.

The other problem is that the bullet often performs unreliably through heavy clothing and is much more easily deflected by bone and such. I'm sure there are times when a super-fast, super-lightweight, frangible 9mm bullet outperforms a more traditional hollow point, but this performance tends to be less reliable.

There's a reason why almost all federal and state law enforcement agencies use more traditional hollow points.
0331: "Accuracy by volume."
Theohazard is offline  
Old August 30, 2013, 10:17 AM   #3
Senior Member
Join Date: May 6, 2012
Location: Southeast Texas
Posts: 1,670
liberty USM4 9mm ammo. Anyone?

It might perform that well in a gel test, but it is a bad choice for SD. It is not a properly constructed defensive round, and it will have problems with terminal performance unless you are shooting at an attacker made of jello who isn't wearing any clothes.

Moral of the story: Unless you live in candy land, I would pass.

Besides, there is plenty of proper 9mm defensive ammo available.
allaroundhunter is offline  

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 09:51 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2016 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.16870 seconds with 9 queries