PDA

View Full Version : Expanding FMJ?


ZBoater
04-06-2007, 12:46
Whats up with this expanding FMJ ammo from Federal? I guess I missed the memo - I thought HP expanded, FMJ (full metal jacket) did not. Cool concept or oxymoron?

http://www.ammoman.com/40_EP_DESC.htm

Dandapani
04-06-2007, 13:46
It is NJ State SD ammo since HP are banned (or whatever the restriction is) or SD ammo for those pistols that refuse to function with other than FMJ ammo.

BrokenArrow
04-06-2007, 15:07
EFMJ is also called CSP/captive soft point.

It's a lead core w a cup face, a nylon ball is put on top, and a internally incised copper jacket encloses the whole shebang. When it hits, the nylon flattens and expands the diameter of the bullet. Through some hard barriers the jacket and nylon will be stripped off, and you end up w just the lead core penetrating more than a few inches.

DANGELO
04-06-2007, 16:45
I posted something about EFMJ ammo from Federal a few months back. I have it, tested it, and carry it in my G19. I have expanded it "without" firing and I have been happy w/the reliability during the 100 or so practice rounds I have put thry my G19.

I think I got an EXPANDED measurement of .51" or .53" off of a recovered round.

VR/S

sgtslwilson
04-09-2007, 18:21
I have to chime in and say I am also impressed with this round. Although every one of my autoloaders function fine with Hollowpoints I would not feel undergunned with this round. All the tests I've seen show they expand beautifully and is a good cartridge for those states that don't allow hollopoints.

Also, with this ammo I can feel ok about a pistol I might pick up that won't feed hollowpoints. A lot of older 1911's won't so now that's not a deal killer.

Lance

BrokenArrow
04-10-2007, 09:08
EFMJ in gel, bare/cloth:

124/9 +P 12.85/.52, 12.5/.52 P228
124/9 +P 11.35/.57, 12.1/.55 92F
124/9 +P 11.3/.60, 10.9/.60 MP5

165/40 12.45/.62, 13.3/.60

165/45 9.1/.74, 9.9/.72 P220
200/45 +P 12.95/.65, 13.7/.65 G21

vafish
04-10-2007, 10:37
Originally posted by dmobrien2001
It is NJ State SD ammo since HP are banned (or whatever the restriction is) or SD ammo for those pistols that refuse to function with other than FMJ ammo.

I can't carry in NJ so the point is rather moot, but the NJ law bans the carry of "Hollow Nosed and Dum-Dum" ammunition.

The NJ Attorney General has defined "Dum-Dum" as any ammunition whose nose is designed to expand on impact with the target.

Federal EFMJ may make it past a quick inspection by a non-gun LEO, but if found after a shooting you still could be charged with carrying Dum-Dum ammunition.

anyplainjoe
04-10-2007, 12:09
with the E-FMJ you don't have to worry about the HP cavity becoming clogged and not expanding. In one of the gun magazines, it had a pic of a nicely expanded E-FMJ recoved from the shoulder of a would be rapist.

Acujeff
04-13-2007, 17:19
Hollow points may get clogged by non-human material (i.e. clothing) on the way into the bad guy, and expansion is thus impeded. Federal's Expanding FMJ is designed to penetrate, not to clog, and expand and is an excellent defense round. Recoil very manageable too.

P99ikp5
04-14-2007, 06:46
Originally posted by anyplainjoe
with the E-FMJ you don't have to worry about the HP cavity becoming clogged and not expanding. In one of the gun magazines, it had a pic of a nicely expanded E-FMJ recoved from the shoulder of a would be rapist.

could you scan the picture for us?

22 Lover
04-14-2007, 08:26
I am a fan of the EFMJ. I have carried it in my 22 and 23 for a couple of years.

BlitzPig
04-14-2007, 13:19
EFMJs are the only self defense rounds that functioned 100% in my .40 and .45 caliber CZs. They are accurate and very clean.

I have since gotten rid of my large caliber CZs, BTW, but I will recommend the federal EFMJs.

anyplainjoe
04-14-2007, 15:16
Originally posted by P99ikp5
could you scan the picture for us?

Sorry, only read the mag at Walmart. But it looked just like it's supposed to-what I saw looks like the publicity photos.

ZBoater
04-14-2007, 16:54
Originally posted by anyplainjoe
Sorry, only read the mab at Walmart. But it looked just like it's supposed to-what I saw looks like the publicity photos.

The link to the ammoman site has a pic of an expanding EFMJ as it passes through gelatin. Look towards the end of the article.

http://www.ammoman.com/40_EP_DESC.htm

dbotos
04-14-2007, 17:07
Originally posted by vafish
I can't carry in NJ so the point is rather moot, but the NJ law bans the carry of "Hollow Nosed and Dum-Dum" ammunition.

I think a lot of the firearms laws in NJ are made by dumb-dumbs. :upeyes:

JoeG19
05-23-2007, 16:08
Originally posted by 22 Lover
I am a fan of the EFMJ. I have carried it in my 22 and 23 for a couple of years.
+1. I have carried Fed EFMJs in my 27, and SigPro2009, Sig239. Just ordered another batch to test in my new 26. They are a slick round. Ammoman has some pics I think on their website re EFMJ. - 'ole joe :dancing:

Merkavaboy
05-24-2007, 10:08
Tom Burczynski was the developer of the EFMJ round and when the concept was introduced to Federal, they initially thought that this round would be a great "made-to-order" loading for European customers.

The 9mm 105-grain EFMJ is sold under Federal's Personal Defense line of ammo and the 124-grain EFMJ in +P is/was primarily intended for the law enforcement market. It seems that Ammoman.com is the only one who has a good supply of the 9mm 124+P loading.

I do recall some time ago a thread about several "failures" of the EFMJ in 40S&W. IIRC, one "failure" was a possible glancing wound off of a BG's forehead and the other "failure" was a round to the midriff on a BG (same BG?) in which the bullet didn't pass through the heavy clothing the BG was wearing. I want to say that these incidents occurred with Chicago PD, but I'm not certain.

BrokenArrow
05-24-2007, 10:17
Detroit PD.

Every now and then you run across a lot of EFMJ that does not expand at all. I had some 165/40 that did not expand at all. We even pulled the bullets, reloaded them and pumped them up another 100 fps, and they still did not expand.

Good idea, but even it can mess up/be messed up.

While not a "hollow point" it is still prohibited many places that use the language of the international policies/regulations/laws/treaties, etc that prohibit ammo that "expands" or "flattens" or has a jacket w "incisions" (EFMJ has an internally incised jacket).

Merkavaboy
05-24-2007, 10:44
Originally posted by BrokenArrow
Detroit PD.

Every now and then you run across a lot of EFMJ that does not expand at all. I had some 165/40 that did not expand at all. We even pulled the bullets, reloaded them and pumped them up another 100 fps, and they still did not expand.

Good idea, but even it can mess up/be messed up.

While not a "hollow point" it is still prohibited many places that use the language of the international policies/regulations/laws/treaties, etc that prohibit ammo that "expands" or "flattens" or has a jacket w "incisions" (EFMJ has an internally incised jacket).

BrokenArrow,

Thanks for the clarification which PD it was and for the additional info. :thumbsup:

Fiery Red XIII
05-24-2007, 12:01
From what I remember...wasn't the Detroit PD using the 95 (or 105) gr. non +p in this incident...Also, I know temperature supposedly can play a roll.

That said, I have the 124+P in my G19.


Red

BrokenArrow
05-24-2007, 16:14
DPD was (still is? ) using the 165/40 EFMJ.

Comparing the 9s:

105 v 124 +P EFMJ

bare 10/.57 v 13/.54
cloth 10.5/.62 v 15/.58
wboard 9.5/.61 v 12/.60
pwood 10/.55 v 13/.55

jhc37013
05-24-2007, 23:46
I like them I have several 9mm and .40 boxes they shoot well.