FN 5.7mm P-90 Ballistics?

The caliber/round is totally secondary (good thing)

The 5.7 caliber is not secondary. Its the heart of the weapon. Without it you would lose these and others:

Low recoil
AP ability
Flat trajectory
High capacity


It will never be the equal of the 5.56 at any range

Nor will any other practical pistol round fired from a reasonably-sized pistol.

It relies on it's ability to easily put multiple rounds on target

It does not rely on that ability, although that ability is present. 90% of the shootings involved one round and the others involved a couple rounds.

Rounds that penetrate less than 13" have been shown to be less than satisfactory in the real world.

The 5.7 has not proven less than satisfactory in the more than a dozen shootings. Anyone shot with it has dropped on the spot.

There is too much chance of having to shoot through an arm into the chest, or through the width of the chest

A side shot increases the effectiveness of a round because from the side, multiple organs can be struck with one round. A shot through the hand would reduce penetration by probably 1-2 inches. The 5.7 would still get enough penetration and then some, provided a 9.4-inch thick target.

Said it before.....the P90 is essentially worthless for civis, and purt near worthless even on full auto, *relative to* other carbine choices. It's fun. It's cute. It's got 50 rounds if you're LEO. But...It's a .22 magnum. If you need a carbine, grab an M4.

#1. No gun is worthless for civilians. And from what I make out, we are not talking civilian application. The P-90 isn't even publicly available at the moment, so there is no point at all arguing that.

#2. I take it from the .22Mag comparison that you didn't read my earlier post. It isn't a .22 Magnum at all. Out of the same barrel length it gets 700 fps better than a .22 Mag and the 5.7 has an entirely different bullet design.

#3. The advantages of the P-90 over the M4:

1/3 the recoil
Lightweight
High magazine capacity
Fully ambidextrous
Ergonomics
Size
Easily maintained
Won't overpenetrate target


The advantages of the M4 over the P-90:

More powerful

Which based on the shootings, wounding ability is not an issue with the P-90 anyway.

-DmL
 
Picked up the new "Gun World" today at Walmart today, solely because it had an article by Leroy Thompson on the FiveseveN IOM. Basically he said "The Secret Service believes the 5.7 has 3 times the stopping power of the best 9mm, but IT HASN'T BEEN INVOLVED IN ENOUGH SHOOTINGS FOR THAT TO BE PROVEN OR DISPROVEN".

Guns and Ammo put out a "Combat Arms" special edition last month. David Fortier did an article on the P90/5.7. In a sub article, Iver Johnson made a necked-down .30 carbine for their M1 Carbine copy in 1963. He said if you place a hendful of each together, you'd have a hard time separating which was which. Nothing is new. Ahead of it's time? Or not well performing back then, either? Fortier also sadi that it was designed for PDW, but was being pushed into other areas of service. He would much rather have a real rifle if intentionally heading into harm's way.


5.56 has been chosen by many CQB teams BECAUSE overpenetration at close range is actually less than most 9mm SMG's.
 
Wow...Gun World apparently understands statistics and the scientific method

And unlike DML they don't appear to have an agenda


Things that make you say hmmmm

I believe the 22mag comparison was a comparison in straight ballistics not weapons platforms

Advocates seem to jockey back and forth between rifle/pistol comparisons in whatever order supports their theory best.

It is a niche round in a niche weapon

Goody :D

It is definitely trendy I am quite certain chicks dig it!

But the terminal performance of the round is at least suspect

Most of the people I know that go in harms way are skeptical of it

I have seen some serious smear campaigns launched against those that would oppose its many claims of greatness.

One of those Is Dr. ROberts of Tactical Forums who has tested the round

"The early 5.7 x 28 mm 23 gr FMJ bullet fired by the FN P-90 had insufficient penetration for law enforcement and military use. The current 31 gr SS-190 FMJ bullet has nearly adequate penetration, but the wound resulting from this projectile has a relatively small permanent crush cavity, as well as an insignificant temporary stretch cavity. Although the 5.7 x 28 mm penetrates soft body armor, wounding potential is at best like a .22 LR or .22 MagnumEven 9mm NATO FMJ makes a larger wound--and we are all aware of the awe inspiring incapacitation potential of M882 ball from the M9....."

And Mr. DiFabio of Ammo lab

"Doc covered this well,
We have also run LE only tests with the 5.7 pistol and the P90 carbine.
Both were very disappointing and I have shared on several occassions that the development and attempted marketing of these cartridges toward the standard LE agency has for the most part been irreponsible IMHO.
This cartridge offers nothing to the patrol officer in terms of increased terminal ballsitics over the standard G22/40 cal serive pistol and it is easily outclassed by a 180gr GD load."
 
Well since it is a one shot killer- I'll stick to my 1964 S&W .22 Jet , which gets a real 2200fps with a Speer 40 grain bullet. That way I still got 5 in reserve :rolleyes: and the S&W has a heck of a lot better trigger pull and sights! :D
I think the 31 grain .22 mag bullets hit about 1800fps in 6" barrel revolvers, my friend has a 30 round capacity Grendel which prolly hits at least that fast with ammo that costs 1/3 the price of the "new" 5.7 Spitfire. ;)
 
Stiletto

The gentleman in the post is talking about full auto fire as well

A full auto 22lr will "tear somebody up pretty well" too

I could dig up lots of posts ...way more than 15 of people dropping to full auto fire from an MP-5
 
^^^

Lessee...going by World.Guns.Ru's ammo ballistics table...

.22 WMR (FMJ) gets you a 300 m/s, 2.6g round.

5.7x28 (FMJ) gets you a 750 m/s, 2g round.

I'm thoroughly unconvinced by the "it's only got the stopping power of a .22WMR" argument just going by numbers and penetration behaviors. Both are known to not overpenetrate. Running some physics numbers, the 5.7mm round gets about twice (1.92x) the momentum and almost five times (4.8x) the kinetic energy.

This is reflected by their ballistic gel performance. Theoretically, the 5.7mm is a much more lethal round than the .22WMR.

For that matter, it's vaguely close to a 9mm JHP (assuming 5.72g and 458 m/s) in energy delivery, with a little over half (57%) the momentum (the reason behind its high controllability despite high ROF in the relatively lightweight P90) and 93.8% of the kinetic energy.

So theoretically, it has kill capability closer to 9mm than .22WMR.

Also, there have been 15 recorded shoots with P90s, as opposed to A Bunch™ of shoots with various 9mm SMGs (including MP5s). So that particular statistic isn't really usable, although for what it's worth, all of the said shoots involved single shots or short bursts. Given, they were conducted by special operators (better shot placement), but it's still suggestive of a successful design.
 
5.56 has been chosen by many CQB teams BECAUSE overpenetration at close range is actually less than most 9mm SMG's.

Even if that is correct, less overpenetration than a 9mm doesn't mean its no longer a concern.

Wow...Gun World apparently understands statistics and the scientific method

We aren't talking about 1-3 shootings. 15 shootings can be viewed as a large enough sample to prove or disprove a weapon's wounding ability.

And unlike DML they don't appear to have an agenda

I'm willing to argue this subject with you, but keep the bashing to yourself. Its what always happens. When one runs out of supporting data, they simply turn to bashing.

I believe the 22mag comparison was a comparison in straight ballistics

Its still false.

Advocates seem to jockey back and forth between rifle/pistol comparisons in whatever order supports their theory best.

When analyzing a pistol round for its terminal effects, one does not compare it to a rifle round fired from a rifle.

It is a niche round in a niche weapon

Actually, it is the opposite of a niche weapon. It works versus both armored and unarmored opponents. This weapon is in use in over 30 countries in a wide variety of roles and its filling those role quite well. It is not a niche weapon.

Most of the people I know that go in harms way are skeptical of it

People that go into harm's way with the P90? I have heard from people that actually operate with the weapon on a daily basis and have extensively tested it.

"The current 31 gr SS-190 FMJ bullet has nearly adequate penetration

I've already addressed this. You don't need more than a 8-10" (let alone the P-90's 12"+) penetrating bullet when engaging a target 9.4" thick, regardless of a 1-2" thick wrist in the way. Also note that Doc GKR doesn't cite the specific penetration number of the round. Maybe because it would undermine his statement?

the wound resulting from this projectile has a relatively small permanent crush cavity

Already addressed this. The bullet is .850-inch in length and turns point upward after two inches of wound travel, and continues travelling in this manner for much of the travel.

as well as an insignificant temporary stretch cavity.

He seems to be ignoring the fact that all pistol rounds create insignificant TC's. So it sounds like he's comparing it to rifle rounds again.

wounding potential is at best like a .22 LR or .22 Magnum

This one shows that Doc GKR has not given this subject much thought. Comparable to a .22 Mag? Given more thought one will realize this is an absurd claim. Comparable "at best" to a .22LR? A claim absurd beyond belief.

I'll take this even further and discuss another quote of Doc GKR's:
"Use of the 5.7 x 28 mm is a good way to ensure mission failure."
This one is also completely false. This round has been in general use dating back to 1991 with hundreds of operators in dozens of PD's and SF/CT units in over 30 countries. Not once has any operator been killed or even injured due to insufficient performance, let alone has it caused a "mission failure".

"Doc covered this well,

The above alone shows that Mr. Difabio has not given the subject much thought either. "Doc" only covered it well if you want absurd claims without solid evidence to back them up.

We have also run LE only tests with the 5.7 pistol and the P90 carbine. Both were very disappointing

I will point out to you that its worthless to simply hear him say "they did bad" but not have it backed up. This info you're providing (which I have read many times in the past and said so from the start) consists only of opinions without any data whatsoever.

I have shared on several occassions that the development and attempted marketing of these cartridges toward the standard LE agency has for the most part been irreponsible IMHO.

#1. These weapons were not developed toward LE like he says.

#2. These weapons are in use with dozens of PD's and have been for some time. They are pleased with them. They work very well for them. So the weapon is not ill-suited for LE work.

This cartridge offers nothing to the patrol officer in terms of increased terminal ballsitics over the standard G22/40 cal serive pistol

Yet again, I must ask: what is up. The point of this cartridge is not to offer "increased terminal ballsitics over the 40 cal serive pistol". Definitely the weapon will be disappointing if your pre-evaluation views are that bizarre. Once again, these quotes would prove nothing even if the weapon hadn't given the performance it has. So if you've seen "smear campaigns" launched against these ballisticians in response to this "data", its no surprise.

-DmL
 
Some shooting info...

I also believe that it is foolish to put all your trust into gelatin based lab results. What counts in my book and probably the book of operators on the street, are "results". People also want to compare results of the 5.7 to the 45ACP, 9mm, etc. The 45ACP has been around for more than 94 years. I wonder what the statistics of one shot kills for the 5.7 will be after 94 years? I know of 13 recorded shootings with the 5.7x28 round. All 13 resulted in kills. I bet if we find out how many times people have been shot at all, with the 5.7 we will find that the kill ratio is on par with the best rounds in use today. 10 of the 13 were one shot kills and the other three were two shots. Some through body armor and some not. Everyone wants to get hung up on the ability to pierce body armor. Who cares??? The only thing that impresses me is that if the round will go through Level II armor then it will certainly go through any type of clothing a bad guy happens to be wearing. That is what concerns me. Kind of eliminates all the arguments of which hollow point will clog with clothing and which will not. That argument seemed to be the fad before the 5.7 came out.

Houston PD shot a subject who was firing at them with an AR-15. The subject was hit in the chest and the bullet tumbled into his heart, cutting it into two pieces. The coroner remarked that he had never seen a wound like that. The bullet also did not exit his body.

One of the cases was at an embassy in South America where three gunmen tried to take over the embassy heavily armed and wearing body armor. Two of the bad guys were taken down with one shot and the third with two shots.

One of our area SWAT teams uses it, that baby rocks. They have had a few incidents where the weapon was used and it stopped the BG cold.

Fargo or Grand Forks, ND had a shooting using a P90 during a raid a couple years ago. The shooting was about 4-5 years ago and resulted in a near instant fatality.

A SWAT team was called to the scene after an armed man, identified as Benjamin "Benny" Griggs, fired at a police cruiser and then barricaded himself inside a house. The standoff between Griggs and the police began at approximately 12:35 p.m. Friday. Griggs refused to talk to police or surrender and continued to fire shots. Seeking to end the standoff, officers fired tear gas into the home at about 2:20 p.m. Griggs then came out of the house, firing at police. The SWAT exchanged semiautomatic gunfire with Griggs and then approached the house. A coroner pronounced Griggs at the scene.

-DmL
 
So theoretically, it has kill capability closer to 9mm than .22WMR.

And here is a quote from Sandy Wall of Houston, TX PD SWAT:

The 5.7mm ball produces a wound cavity about the size and shape of the best 9mm 115 grain JHP +P+, except the peak occurs at a deeper penetration.

And more from the same officer:

When I talk to operators from other agencies about weapons, I now seldom have to explain what weapon I’m talking about when I mention the P90 as my primary. Obviously the folks at FN are getting the message out and the weapon is now familiar. If you operate in an environment like the one I operate in, you can’t go wrong with a P90 slung at the low-ready.

-DmL
 
Yes, and I have heard some less flattering quotes from Mr. Wall from people that actually know him and worked with him while they were evaluating the p90.

And I have seen you run this discussions into the ground on too many different boards to want to watch this ;)

In fact...a check of your posts on TFL shows you pretty much joined to discuss this weapon system almost exclusively.

How is your FN stock doing anyway???

Later
 
^^^

And I joined the board because I was looking for info about Desert Eagles. What's your point?

Keep the ad hominem stowed, it's not relevant.

What's your agenda for disliking the P90 concept and system so much?
 
In fact...a check of your posts on TFL shows you pretty much joined to discuss this weapon system almost exclusively.

Your last post was about 10% ad hominem and 90% argument. Your most recent post is 90% ad hominem and 10% argument. It seems you're running out of reasons to justify your disliking of these weapons.

Why are you so against these weapons? Trying to save people from having to trust their lives with such an ineffective round? A round so "ineffective" its in general use in 30 countries with the elite (French GIGN) and has yet to be responsible for the injury of any people using it over the past decade?

You are correct that when I discuss something here, it is most often these weapons. But that is when I discuss. I read about many subjects.

-DmL
 
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A round so "ineffective" its in general use in 30 countries with the elite (French GIGN) and has yet to be responsible for the injury of any people using it over the past decade?

If true, why the intent of the original post? You stated you wanted to find more info about shootings with the 5.7. If thirty countries have it, and it has been around for a decade, why is there only info on about 13-15 or so shootings?

But does anyone here know of any shootings with it other than the Lima, Peru raid?

Seems this was the only one you knew of when you started this post.
 
why is there only info on about 13-15 or so shootings?

That is why I am inquiring for more info.

Seems this was the only one you knew of when you started this post.

I've known of the shootings posted here for a long while. I mentioned the Lima shooting because its commonly known and I expected replies mentioning it.


Please list the outstanding "info" you believe those links contain. I can assure you, I've covered that link ("FN Five Seven Test Data") on another board and many of the claims within it are blatantly false. Why take the word of the TF folks? They have an axe to grind. Their credibility (Doc GKR) is at stake and they will make far-fetched claims to protect it.

-DmL
 
I think I'm going to buy a Kimber .17 MACH 2 Target for a Defensive carry gun.


.17 caliber bullet, 17 grains, 1600+fps. Got to be the latest thing in CCW! :D
 
^^^

You know, the SS190 and associated rounds were designed to be combat effective. I dunno about .17WMR. :rolleyes:

Have there been any human shootings with .17 yet?
 
Have there been any human shootings with .17 yet?

Does it matter?


More info I have gleaned on 5.7. This is based on magazine writers, but I don't have the access I used to have regarding such matters.

David Fortier:

"Developed as a NATO replacement for 9x19, this cartridge currently languishes in limbo. While it has successfully met all NATO criteria for PDW, Germany blocks its adoption. While it was adopted by a number of European SF and the U.S. Secret Service, many vocal detractors doubt it provides adequate terminal performance. It will be interesting to see what, if anything, the future holds for this tiny cartridge."

"It should be understood from the outset that this new PDW was intended to be just that, merely a defensive weapon. It was intended to be issued only to personnel who did not need a regular assault rifle(truck drivers, maintainence personnel, etc.), but still need a weapon to protect themselves. While the P90 was intended to be a PDW, some are pushing it for other, more offensive missions."

"Currently, there have not been enough actual shootings with this combination to clearly define performance. It was used in the well-known Lima, Peru Embassy incident. In another well-known incident, Houston PD SWAT responded to a man firing an AR15. He was killed by a shot in the chest attributed to the P90, although several shots were also fired by 5.56 weapons. I am also privy to an incident in Iraq where an American soldier was hit with a 5.7x28 round fired from a P90 during a certain raid. Hit in the hip region, he dropped instantly and tumbled down a flight of stairs. It should be kept in mind, though, that a hit in this region with most any caliber would likely have had the same effect."

"Would I rather have the P90 SMG than a 9x19 handgun loade with ball if there was the chance I would be attacked by assault-rifle-armed and body-armor-clad hostiles? Yes: Poor terminal performance at 900rpm is better than rounds failing to penetrate."

"The P90 is a PDW. Nothing more."

Guys, I know it isn't very sexy to think of your prized toy as being designed for truck drivers, mechanics, and clerks. But it was.
 
Does it matter?

Yes it does. Don't be absurd. If the .17 M2 gives repeatedly outstanding performance in shootings, I'm not afraid to carry it.

Developed as a NATO replacement for 9x19, this cartridge currently languishes in limbo.

:rolleyes: "Languishes in limbo". I've stated more than a few times that its in use in over 30 countries.

While it has successfully met all NATO criteria for PDW, Germany blocks its adoption.

Incorrect. Not only has it "met NATO criteria", but its was also tested and recommended over HK 4.6mm (and others) by the NATO QRT as the best-suited replacement for 9mm. Germany blocked adoption because they were already comitted to using the 4.6mm from the start.

It will be interesting to see what, if anything, the future holds for this tiny cartridge.

After 10 more years of international use in counter-terrorist, PDW, LE, and SF roles? The above comes from a magazine. Put together to entertain the reader. There is no basis to the statement that "this weapon's future is unknown". We are IN the weapon's future. It was developed nearly fifteen years ago and first saw action in 1991.

While the P90 was intended to be a PDW, some are pushing it for other, more offensive missions."

Yes, some are pushing it for "more offensive missions". In fact, many. And all of them high-profile international CT/SF units. The M1911 was a military sidearm. Going by the author's methods, that would mean the M1911 was not designed for police work or CCW.

"Currently, there have not been enough actual shootings with this combination to clearly define performance.

There certainly have not been enough, if the author only knows of three kills with it.

It was used in the well-known Lima, Peru Embassy incident.

As I pointed out earlier, this incident alone involves three outstanding kills.

In another well-known incident, Houston PD SWAT responded to a man firing an AR15. He was killed by a shot in the chest attributed to the P90, although several shots were also fired by 5.56 weapons.

I am virtually positive that the above info came from MY posts on one message board or another. I am really only the second person on the internet to let slip the info about the "subject firing at them with an AR15". I am quite amazed, if only the author hadn't had a bias. He left out my comment about the heart being destroyed, and take note that the 5.56 weapons impacted elsewhere on the body (IIRC hands/arms) where they couldn't help the 5.7 do the heart damage. He's leaving out details. If he took all this shooting info from my posts, (except for the one about the US Soldier) then he also left out details on the Lima shooting. He merely said the P90 was "used" in it. Three suspects were hit through IIIA soft armor and they died before they hit the ground.

I am also privy to an incident in Iraq where an American soldier was hit with a 5.7x28 round fired from a P90 during a certain raid. Hit in the hip region, he dropped instantly and tumbled down a flight of stairs. It should be kept in mind, though, that a hit in this region with most any caliber would likely have had the same effect."

This seems to be the only shooting he didn't take from my posts. I still can't say how amazed I am that my info was quoted.

"Would I rather have the P90 SMG than a 9x19 handgun loade with ball if there was the chance I would be attacked by assault-rifle-armed and body-armor-clad hostiles? Yes: Poor terminal performance at 900rpm is better than rounds failing to penetrate."

The author shows a bias in this statement. From where did he get the impression of "poor terminal performance"?

"The P90 is a PDW. Nothing more."

David Fortier can argue that out with the world's top counter-terrorist units. He can tell them that their standard entry weapon is "nothing more".
 
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