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The currently available SS195LF (lead free) ammo is a 28 grain @ 2350 fps and 343 ft./lbs. of muzzle energy from the 16” P90 or AR-57. It is approximately 300 fps slower out of the 4.8” handgun with less energy.

The currently available SS197SR (sporting round) ammo is a 40 grain @ 1800 fps and 340 ft./lbs. of muzzle energy from the 16” P90 or AR-57. It is approximately 200 fps slower out of the 4.8” handgun with less energy.
hijacking a tad:

what options are out there for handloads? can you even buy loose bullets for this? anything you can buy loose that you can't buy ready to fire?
 
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hijacking a tad:

what options are out there for handloads? can you even buy loose bullets for this? anything you can buy loose that you can't buy ready to fire?
Hornady V-max. You can handload it. Chamber pressures are in excess of 50,000psi and the Five-seveN is mostly plastic, I mean, "polymer". Get a load wrong and the results can be catastrophic: FN Five-Seven KABOOM - The Firearm Blog
 
Hornady V-max. You can handload it. Chamber pressures are in excess of 50,000psi and the Five-seveN is mostly plastic, I mean, "polymer". Get a load wrong and the results can be catastrophic: FN Five-Seven KABOOM - The Firearm Blog
yes. seems i should google before posting questions...

evidently the 5.7x28 is extremely pressure sensitive and dangerous and difficult to handload. FN won't release data to american manufacturers so the only data out there is what folks have come up with after experimenting. Evidently lots of these guns have gone Boom during this experimentation. the 5.7 in fact uses the same .224" bullets as 5.56, 22-250, 22 hornet, et al. the problem being it's really only suited to the lightest of this family, the 35-40 grain, 55 for subsonic. the heavier bullets will overpressure. there may or may not be issues with boat tails in this cartridge, and there appears there could also be an issue with a coating that comes on factory brass. They also appear to pose difficulties when it comes to sizing this cartridge.

all this info comes from a quick search of handloading this round. zero firsthand experience. i've never even shot anything chambered in 5.7x28. handled a ps90 in a store. that's my awesomely thorough knowledge...
 
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Love my 5.7 and had this very same argument on this forum before on the capabilities of the 5.7. Glad other people are starting to appreciate it more. It's a great round and amazing pistol.
 
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hijacking a tad:

what options are out there for handloads? can you even buy loose bullets for this? anything you can buy loose that you can't buy ready to fire?
The warranty and guarantee and liability issues are clear and unmistakable---you hand load and you are on your own. There have been instances where firearm has gone "kaboom" and, if not mistaken, all that I have read about involved handloads.
 
Just a last point on this 57 pistol. There are two forums--an FN forum that will get you to the 57 and a fiveseven forum, that is independent of the FN name but has its supporters. My impression has always been that many who populate these forums and particularly the FN forum, are former, current military, LEOs or some offshoot of security-related business. I find their discussions to literally be above my head with various "pistol furniture" to enhance their fireams and technical discussions on ballistics, cartridges, lethality, armor piercing etal. There is even a company that seems to specialize in providing services and boutique ammunition to the FN57 community. All in all, I find this info intriguing and, in a way, supporting evidence that this is not a niche/special strange caliber firearm, but a serious change in pistol design and caliber. As I said before and others have said, we all tend to defend our choices and they all are good choices--obviously, I am doing the same. No matter what, though---"SA all the way" is number 1 in my book.
 
Just a last point on this 57 pistol. There are two forums--an FN forum that will get you to the 57 and a fiveseven forum, that is independent of the FN name but has its supporters. My impression has always been that many who populate these forums and particularly the FN forum, are former, current military, LEOs or some offshoot of security-related business. I find their discussions to literally be above my head with various "pistol furniture" to enhance their fireams and technical discussions on ballistics, cartridges, lethality, armor piercing etal. There is even a company that seems to specialize in providing services and boutique ammunition to the FN57 community. All in all, I find this info intriguing and, in a way, supporting evidence that this is not a niche/special strange caliber firearm, but a serious change in pistol design and caliber. As I said before and others have said, we all tend to defend our choices and they all are good choices--obviously, I am doing the same. No matter what, though---"SA all the way" is number 1 in my book.
I hope so. IMHO the 5.7x28mm is particularly well suited for home defense. If Germany ever pulls its head out of H&K's ass (they were pushing the 4.6x30mm), the way can be cleared to NATO standardize the 5.7 round to replace the 9mm.
 
I think, that within the limitations of the mission it was intended for, the 5.7 is a perfectly adequate round.

  • Yes, it has less power and less lethality than a typical 9mm, but in return it is easier for less well trained individuals to use and has a longer effective range (especially when comparing a typical 9mm subgun and a 5.7 PDW which is it's reason for being.)
  • As a Small Caliber High Velocity round, it has a better chance of penetrating bullet resistant vests ('sporting rounds' excepted) than typical 9mm bullet designs.
  • As a SCHV round, it is less likely to over-penetrate interior or exterior walls should the bullet miss its intended target. 9mm rounds have been shown to penetrate many more drywall sections than more lightly constructed rounds, even those from rifles.


Do I think it's the be and end all of bullets? By no means, but it does have a place, just as the .380, .38SPL and .32MAG have their place. I like it enough that my bedside gun is a PS90 (2nd generation). I've found that even when shouldered it sticks out less than my outstretched arms would holding a pistol, and that's with the full-sized barrel still on it.
 
I wonder what the response time was for medical treatment for those with the most traumatic injuries, being those injuries occurred during an active shooter scenario? It seems that could be one factor overlooked in this very good discussion. If those shot COM, (God bless them), lingered while events unfolded, waiting with no medical care, it seems their chance of bleeding out/going into shock/expiring would increase greatly. The round couldn't be given credit for that under those circumstances.

The only real negative about the 5.7 and the guns chambered for it, in my opinion, is the inability for civilians to get the very ammunition that was meant to make the round and weapon successful, that which penetrates armor.
 
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I'll agree with the OP. I find these arguments no different at all than those made when the military switched to the 5.56. Haters gona hate.
 
Claiming 100% of COM shots are lethal with the round is a big stretch and colors the argument - whether it happened in one case or not.

ICE dropped it like a hot potato. While the specified rounds will go thru a vest, they don't perform worth crap on the other side - got that directly from an ICE firearm training officer.

Put it through the torture tests that every other defensive round goes through, then come tell us all about it.

IMHO, there's no reason for the ammo to be so expensive - except the patent holder wants to make a quick buck. AA tried this with the 6.5 Grendel and while it could've been extremely popular; AA's attempt to keep anyone else from copying it just prompted the shooting community to move on to other things - and it got copied anyway. I'm not saying either round isn't a good/great round, but I think the originators have shot themselves in the foot.

I can buy 2-3x the number of guns and ammo or a gun and a class. It may be a neat cartridge, but not that neat.
 
The only real negative about the 5.7 and the guns chambered for it, in my opinion, is the inability for civilians to get the very ammunition that was meant to make the round and weapon successful, that which penetrates armor.
Very true. Elite Ammo, who cater to 57 fans and also make different kinds of boutique ammo for the pistol, got in a bit of hot water with ATF/feds over ammo piercing at one time. If I am home or at and about in my way of life, ammo piercing means as much to me as having a 50 caliber gun strapped to my waist. Lightweight, lo recoil, capacity, accuracy (from cartridge and lo recoil) met my requirements. As said
by others, everyone has their favorite and can give you all the reasons for their choice and it can vary from a simple derringer to a 50 cal. Price fluctuates and you keep supplies up when you have an opportunity. Heck--the toughest cartridges to find at a reasonable price are 22LRs--the low man on the caliber totem pole.
 
I wonder why USSS is so hot on the 5.7? I think they see protection of the POTUS in terms of close-range assassination attempts (like the attempt on Reagan), and that does fit the mission profile of the 5.7x28mm cartridge.

IIRC the civilian SS197 round can penetrate soft armor if fired through a PS90 (the longer 16" civilian barrel, not the SBR P90). While some people will say "OMG! That's the armor-piercing handgun!" when they see my Five-seveN, in reality, I have absolutely no need or use for bullets that can defeat armor. Thieves tend not to wear full body armor. Most SD shootings occur at very close range, where you can aim for non-armored areas. And if you had to deal with a target at a distance who was armored, you would most likely have another option available - escape.
 
Claiming 100% of COM shots are lethal with the round is a big stretch and colors the argument - whether it happened in one case or not.

ICE dropped it like a hot potato. While the specified rounds will go thru a vest, they don't perform worth crap on the other side - got that directly from an ICE firearm training officer.

Put it through the torture tests that every other defensive round goes through, then come tell us all about it.

IMHO, there's no reason for the ammo to be so expensive - except the patent holder wants to make a quick buck. AA tried this with the 6.5 Grendel and while it could've been extremely popular; AA's attempt to keep anyone else from copying it just prompted the shooting community to move on to other things - and it got copied anyway. I'm not saying either round isn't a good/great round, but I think the originators have shot themselves in the foot.

I can buy 2-3x the number of guns and ammo or a gun and a class. It may be a neat cartridge, but not that neat.
Well, if the BG is wearing a vest, a bullet with crappy performance after penetrating the vest still beats a bullet that doesn't penetrate the vest. It certainly has its place as a military round, but I doubt it will ever see enough widespread use in civilian life to convince the masses. Heck, 9mm Luger has been in use for, what, 100 years, EXTREMELY widespread use for at least 30 in the States, and yet there are still folks who think it's barely better than throwing rocks.
 
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You joined in 5/11 and waited almost 3 years for you first post?
Odd.
Maybe he had nothing to say? Don't be a stranger, come back sooner next time!

After the arrest of Former NY Knicks player Raymond Felton, the NY Post reported his FN5-7 as being an armor piercing round? Is this true of the 5-7 ammo in general? I have seen some YouTube videos of it. It appears to be a very low recoil high speed round (expensive they report). Someone enlighten me on this point!
 
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This has been motivating. I own a FN MK II and I think I am going to order somemore ammo.
 
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Maybe he had nothing to say? Don't be a stranger, come back sooner next time!

After the arrest of Former NY Knicks player Raymond Felton, the NY Post reported his FN5-7 as being an armor piercing round? Is this true of the 5-7 ammo in general? I have seen some YouTube videos of it. It appears to be a very low recoil high speed round (expensive they report). Someone enlighten me on this point!
I have serious doubts that Mr. Felton had armor piercing rounds. This is the NY Post reporting and "if it bleeds it leads" is a precursor to stories--what better way than to use the "reputation" of the 57 to make the story sound worse than it is. Very restricted if, indeed, it still exists, and if it does exist, the ATF is watching very carefully that it is only in the hands of law enforcement or military. Just my opinion but makes more sense than telling me that a basketball player was walking around with uber-restricted ammo.
 
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