View Full Version : thoughts and observations on EFMJ

03-05-2004, 08:22 AM
did a search and still haven't seen much talk about the Federal Expanding Full Metal Jacket on this forum... so I thought I'd start a post, to collect some thoughts, experiences and opinions...

appearently, when this round was first introduced each loading was a slightly heavier and slower bullet than what is offered now, and didn't do so great in the denim testing arena... but the newest versions are all lighter and faster, and seem to perform quite well... althought they typically fall about an inch short of the JHP's in penetration, I have found them to expand more consistenly now...

along with the benefits of a better feeding bullet than the JHP's, the EFMJ's that I have experimented with showed perftect expansion every time thru different mediums...

althought hardly a scientific test, they consistenly penetrate one less water bottle and cause much more damage / disruption to the initial water bottle than the JHP's... this tells me that they are expanding at a much faster rate than standard JHP's which would make sense since all they have to do is collapse under impact, causing somewhat of a "smack" to the target... this faster expanding action, combined with bullet weights lighter than the typical JHP's make this an ideal indoor / home protection round with less penetration than JHP's, but more than the Glazer Safety Slug offerings... that's the reason I like them... now, if I were worrying about self-defense for the street, I'd probably try to get my hands on some Ranger T's or something with more weight / proven penetration / expansion...

what are your thoughts, observations, experiences with this round?

Steve Camp
03-05-2004, 10:25 PM
what are your thoughts, observations, experiences with this round?

thoughts: see The Ammo Lab (http://www.theammolab.com). David DiFabio seems to like the Corbon Pow'rBall ok. I would think the Federal EFMJ behaves similarly, but I would want to review the tests at The Ammo Lab (http://www.theammolab.com). For me, it is solves a non-existant problem (I don't live in PRNJ), and I'll stick with

185gr Taurus Copper Hex
230gr Ranger T (RA45T)
230gr Ranger T +P (RA45TP)
230gr Gold Dot (Black Hills or Buffalo Bore or ProLoad or Speer)
230gr Remington Golden Saber

observations: none
experiences: none

PJS Safe Shooter
03-06-2004, 07:50 PM
How can you tell the "new" EFMJ from the "old?"

03-07-2004, 04:30 PM
How can you tell the "new" EFMJ from the "old?"
I've seen Federal 9MM EFMJ advertised in 124 gr. Federal's website only lists 9MM EFMJ in 105 gr. in it's current 2004 catalog. There is no mention of the 124 gr.

PJS Safe Shooter
03-07-2004, 04:44 PM
Ah yes, Grasshopper - I should have known to look at the weight!


Now, next question: Does anyone have any lab results of the new stuff?

03-08-2004, 06:11 AM
and the old .45's were 200 grain (like in Ammolabs tests), but the new ones are 165 grain

Al Lipscomb
03-09-2004, 10:44 AM
The EFMJ is a young design and I am sure it will continue to get better. While today the JHP is the better round, that could change.

If the EFMJ will provide better feeding for an autopistol and offer the performance of a JHP then it will be a better round. Federal is a good company and they have put a lot of effort behind the development of this round. When I spoke with the Federal reps at the NRA convention in Orlando they seemed to have high hopes for the round.

04-15-2004, 08:49 PM
The "old" EFMJ is still around; IIRC it's now marketed as a LE round. They use the heavier bullets, the 124/9 +P, the 165/40, and 200/45 +P.

The "new" EFMJ are marketed in the PDA line and are lighter/faster, the 105/9 at 1230, the 135/40 at 1190, and the 165/45 at 1090.

The heavier loads go deeper, meet the LE 12 inch minimum penetration depth in bare gel, the lighter PDA loads from 9-12 inches.

bare gel, 4 in bbl

124/9 at 1065 did 12.85/.52
105/9 at 1175 did 8.9/.57

bare gel, 5 inch bbl

200/45 at 1010 did 13/.65
165/45 at 1069 did 9/.75

04-29-2004, 02:47 PM
Seems Fed is getting the hang of the EFMJ?

Latest stuff I have is faster than earlier stuff, penetrates/expands better too.

124/9 +P EFMJ at 1170 fps, 15/.58 through FBI heavy cloth. Speer 124/9 +P GD at 1235 fps 14/.60.

04-30-2004, 07:37 AM
I've been waiting to hear David's assessment of the relative merits of EFMJ and JHP.

Well, David, based on your say-so I'm going to switch from Fed's 200 gr +P EFMJ to Hornady's 230 gr +P JHP in my Glock 36. Assuming it feeds the test box perfectly, that is.

Thanks for the info, everybody.

04-30-2004, 11:50 AM
Even better! Thanks! :)

04-30-2004, 12:28 PM
124-grain 9mm??? I thought that was the old load?

the newer stuff is 105 grain...

or have they gone back to the 124-grain?

04-30-2004, 05:40 PM
The 105/9, 135/40 and 165/45 EFMJ are marketed in the Personal Defense line.

The 124/9 +P, 165/40, and 200/45 +P are marketed to LE.

The latest lots of the 124/9 +P and 200/45 +P EFMJ I shot performed much better than the earlier lots I tried BTW.

05-11-2004, 08:40 AM

I am a LEO from Austria and our Police Station will buy the Federal EFMJ. Whats the better option, the 124 gr. or the 105 gr.

05-12-2004, 05:53 AM
If he wants penetration to/over 12 inches, the 124g EFMJ would be the way to go.

OTOH, from what I've seen, the Europeans seem to think penetration less than 12 inches is ideal. Seems to be what they are shooting for w their LE designs like the MEN/QD/PEP and EMB anyway. The 105 EFMJ would meet those specs better.

Through heavy cloth:

124/9 +P EFMJ 15/.58
105/9 EFMJ 10.5/.62

05-15-2004, 12:25 PM
Before we shoot the EMB from Hirtenberger. But we have many problems with them. The projectil is to low in the chamber, so it will fall down in the magazin. Also we have shoot´s where the projectil stay in the barrel.
Excuse my bad english.