I can think of a couple reasons for the consumer market, one being the constant talk of banning the 5.7x28.

For the commercial/mil/leo market, FN did it right and there really isn’t much to improve on the Five-Seven.

I beat this horse all the time, but someone making a sub $1000 handgun in 7.5 FK BRNO and some ammo that was not a buck a shot would sell the hell out of them.

The ballistics are phenomenal...90 grain all copper JHP moving out of a pistol at over 2000 fps...and maintaining energy out to 200 meters?

It would laugh at the 5.7 from start to finish.

Not interested in the pistol version.

The Ruger PCC is too big for the caliber (if that’s the plan) given the size of other guns in 5.7.

Ruger should make it for the braced Charger.

I’ll be buying one.

Ballistically is it too close to other popular ammo and some thought it is "redundant"?

The FN 5.7 is probably a great gun but at over $1K I would imagine that kept it fairly unpopular with the masses.  Coupled with the high cost of ammo.

I am just surprised it took all these years for a large manufacturer to maybe make a more affordable version.

Part of that picture is photoshopped, because there isn't anyway the rounds pictured are fitting in a magazine that fits in the pistol.

@armoredman

The more I skim thru the "interwebs", the more the reloading problems seem to revolve around poor practices and fear set up by FN reps who like all gunmakers, discourage reloading.

There does seem to be some debate as to the actual purpose of the case coating, that is, whether it is for "storage" or to facilitate extraction.  Maybe both?

Also, allusions to the shoulder angle being too sharp for reloading appears to be bunk, too, as it is listed on CIP as 35 degrees while other cartridges have shoulder angles of 40, etc.  There's not a lot of taper on the case so that could come into play to make it a bit "sticky" at max loads.  And maybe factory/GI ammo is run hot?  Which indicates a handloader could back off a bit, get good performing, safe loads even if not turning in absolute max velocities.

Anyway, I would be interested to read a really knowledgeable handloaders full report on reloading the thing.  I guess I just don't see what the big mystery is all about.  I've handloaded since the '70's and have done case forming, etc and this thing just doesn't look like it should be voodoo to handload.

It's funny you say that.

I saw a report when the thing was intro'd and I thought:

"It's a CZ...lets wait and see how it ACTUALLY plays out..."

Don't they cost thousands of dollars?

Out of a FN 4.8" pistol barrel: MV of approximately 1560 fps and ME of 216 ft. lbs. for the 5.7x28mm 40 grain

22 WMR out of a 6.5" barrel: Fired from a 6.5" pistol barrel the 40 grain loads register 1480 fps MV and 195 ft. lbs.

I couldn't find data for an equivalent barrel length

Besides the MPR rifle they would be the only two Rugers I would be interested.

Interesting......I would have thought it to be more powerful.

Thanks.

Depending on price I want one.  The FN 57 has never been affordable.

I am really surprised that the ballistics show it is only a bit more powerful than the .22 magnum.

I think it will do well if it sells at $500 or less. That would put MSRP at around $600-$650.

We already have that.  It's called 9x25 Dillon.

http://www.doubletapammo.net/index.php?route=product/product&path=303_372&product_id=71

https://www.underwoodammo.com/collections/handgun-ammo/products/9x25mm-dillon-90-grain-xtreme-defender?variant=18785701691449

I was interested in the FK too until I did the math and realized my G20 with a $160 drop in barrel duplicates it.

Yes, I'm well aware asshole Bill is dead. But *I* refuse to give Ruger ANY of my hard earned money. He sold gunowners out in order to appease the gun grabbers & he also REFUSED to sell Mini mags to civilians. He was a first class ASSHOLE to gun owners.

Nor has a single person in the current management staff apologized nor even bothered to say what he did was wrong. Not one.

I will say the concept is sound, tho I laughed out loud the first time I read an article about the thing.

I carry a pistol a lot in the field, ski treks and whatnot and use them on varmints, small game, snared coyotes and killing butcher stock and for 99.9 % of the uses I have a .22-.30 cal light bullet at high velocity would be awesome, especially in a high cap capable gun like the FN57.  But I baulked at the price of a FN so I cannot even imagine spending anything like what CZ wants for their thing.

Years ago I carried Tokarevs and a CZ52 on my ski treks and the round is really excellent but the guns are just plain obsolete. I do wish somebody would release a modern pistol in that caliber, too, tho I'm betting I'll finish my days with my 9mm P320.

Cost.

It was $1 per rd when it first came out. Now it's roughly 50 cents a rd. That's expensive for a semi handgun rd, IMO.

This! Haters gonna hate.

It's a a completely different company.  You expect the current management to shit all over their company name?

Some MP5 clones were built for 7.25Tok

I think I will buy one

Glock 40 in 7.5 FK would be the bee's knees, as would an AR pistol in this caliber as a PDW.

Did you see the ballistics posted above where it is only marginally more powerful than the .22 magnum?

That really surprised me...….it ain't worth the increased cost if that is all it does improvement wise IMHO.

I have successfully handloaded for the 5.7, and while you do have to pay close attention, (just like all other calibers), it is not rocket surgery.

If you can't load 5.7, maybe you shouldn't hand load at all.

The only tricky thing is the lacquer coating.  That is a concern in the PS90, as well worn cases don't always navigate through the magazine successfully.  In the pistol, it is not a problem.

I never tried to hot rod it, however.  I suspect this is where its reputation for being difficult comes from.

5.7 is fairly miserable to reload in quantity.

The brass is fragile. Very fragile. The 57 pistol is a LOT gentler than the PS90, but the PS90 absolutely mangles the brass. The shoulder requires a (relatively) enormous resizing process to get it back in spec. After the second reloading my cartridges in relatively warm loads in a PS90 come out damn near straightwall.

Trim length is fairly critical to good function. Thin brass, (relatively) high pressures, and a hefty resizing operation means trimming is fairly critical because its going to stretch a good deal.

The vast majority of the brass has primer crimps. This isn't that big of a deal but the size of the case and the lack of reasonably priced progressive loading options means you have to remove the crimps individually- I can't just toss it in my 1050.

Cases are relatively easy to crush if you aren't careful. I use an M die, chamfer the case mouths, and then use a die with a sliding sleeve to avoid this.

I've personally found that some dies are incapable of setting the shoulder back correctly. Or rather, a combination of dies and shellholders. I am completely incapable of setting the proper length with hornady dies and lee or hornady shellholders. With a redding shellholder I am able to set it. I i bought one of the cutaway Sheridan gauges and it was helpful. I also have an Elite Ammunition gauge and it is too tight. It just shows that manufacturers aren't in perfect agreement about the 5.7.

The hubbub about it being super intolerant of powder charge and it's going to blow up if you go 0.1 over is dumb so don't worry about that so much, as long as the loads are reasonable.

I don't know if the fuss about the lube on the cases is important or not. There is a lot of fuddlore as to what purpose it serves. Some same it is needed for ps90 extraction, some say for ps90 magazines to be reliable. The pistol is considerably more tolerant. I've only gotten 4 loadings out of a piece of brass before I was so suspicious of it I tossed it, and I never bothered to try and clean it. Those who do use simple green and an ultrasonic.

The 5.7 is safe to reload... it's just a gigantic pain in the ass for the sort of gun you're going to be pumping tons of rounds through.

The Five Seven can push a 40gr over 2,000 FPS. The velocity out of a similar length barrel would be the PMR30.

Kel-Tec PMR 4.3" barrel
Calibers: .22 Magnum (.22WMR)
Energy (40gr): 138ft-lbs 187J (1250 - 1300fps)

FiveseveN Pistol 4.75 inch barrel
40gr EA Protector 2,092fps-389 ft LBS
28gr EA Trident T6 2,570fps-411 fl LBS

Anyone can cherry pick data to fit their argument with enough info available.  If you really based your entire decision on that guys post, there is probably no talking ballistics to you anyway.

Side by side, real world...

Maybe they have downloaded it, but when I first got a 5.7, the 40 grain load was good for >1700 FPS on a mild spring day.

Call it 257 foot-lbs.

I haven't chronographed .22 magnum out of any reasonable length barrels, (In NAA mini-revolvers the magnum hits 940 FPS compared to the long rifle hitting 800 FPS, though its barrel was slightly shorter).

Of course kinetic energy is not a good comparison, but with the same caliber and bullet weight it comes close.  Bullet construction will significantly contribute to performance.

For its intended purpose, the 5.7 outclasses the .22 Magnum.  Add in reliability considerations, and I know which one I would choose.

Thanks...…..you have to read the link below.  Here is a quote:

Published reports indicate that as factory loaded the 5.7x28mm drives a 32 grain bullet, load #SS190-AP (armor piercing), at a muzzle velocity (MV) of 2350 fps with 390 ft. lbs. of muzzle energy (ME). The 28 grain spitzer bullet, load #SS195LF-JHP, has a muzzle velocity of 2350 fps and muzzle energy of 290 ft. lbs. The 40 grain Hornady V-Max bullet, load #SS197SR, claims a muzzle velocity of 1950 fps with 340 ft. lbs. of muzzle energy. Readers old enough to remember the obsolete .22 Remington Jet small game and varmint cartridge of 1960--40 grain bullet at about 2000 fps from a S&W Model 53 revolver--will be startled to hear that the slightly less powerful 5.7x28mm is a "cop-killer" round.
It is important to remember that the 5.7x28mm velocity and energy figures were derived from a 10.35 inch (sub-machinegun length) test barrel and that the Five-seveN pistol barrel actually measures 4.82 inches in length. Realistically, we can anticipate a substantial velocity loss of about 20% when the 5.7x28mm cartridge is fired from a pistol. This would mean an actual MV of approximately 1560 fps and ME of 216 ft. lbs. for the 5.7x28mm 40 grain bullet when fired from a handgun. Because it starts a heavier bullet at lower velocity, which maximizes energy and minimizes velocity loss, this should be the most effective load for a 5.7x28mm pistol.
A comparison of the performance of the .22 Winchester Magnum Rimfire (WMR), introduced in 1959, and the 5.7x28mm is interesting. The .22 WMR shares the same bullet diameter (.224") as the 5.7x28mm cartridge and their muzzle and energy figures are actually rather similar.

Link

Right

I have not decided one way or the other...…..I am trying to learn.

The info seems to be all over the place and this is WHY I am asking you guys for god's sake.

Thanks for the video.

"assume"
"presume"
"might"
"probably"

Fucking LOL.  You need to practice where to and where NOT to get info from.

That’s great and all but I’m giving you numbers actually measured from a five seven pistol. The point I was making is on average from similar barrel lengths and the same projective weight. The FN Five Seven can see 40-50% more velocity. (Over a 22 Magnum)

Also the very underwhelming factory loaded SS197 40gr he is referring to usually chronos around 1650-1700 out of the Five Seven not 1560 which he guesses.

Get some real ammo made by EA and you are over 2,000 FPS.

Additionally, what’s more reliable a rimfire or centerfire cartridge?

Why not make something like a braced HK MP7 but chambered in 5.7 and with a binary trigger from the factory hnnng

I saw that video and it does show 5.7 has a lot more power.

Thanks.

@Redarts

THANKS for that.  That is the single best and most sensible assessment of the cartridge for reloading I've read.

Makes total sense.  Thanks!

Thanks guys.

The rounds aren't going to sit directly parallel with the bore. I guarantee they have some upward tilt, which reduces the front-to-back mag dimension.

It's just not Photoshopped. Too much unique detail, using Ruger design cues, in forms that are unique. If it were fake it would be wildly superior to any gun industry prank I've ever seen. That level of work would be a professional job by a Hollywood firm to make a mockup, or some really hot shit chan action.

So it's a larger Security 9 in 5.7. If it's cheap enough I'll buy one once the model with no manual safety comes out.

My body is ready

last spring the guys over at DSA were working on a pistol chambered in 5.7,im thinking they got the design up and running and sold it to ruger.at the time,they had the gun mostly completed but were having trouble with magazine design.at least thats how i remember the conversation.

Day one buy for me. Finally a cheap alternative to the five-seven to play around with the round, without spending too much just to play around with the round. I don't understand the hatred here. Something like this could kick start the ammo market resulting in cheaper and better performing ammo. Right now it's a niche market, sure, but I guarantee you Ruger's about to snatch FN's wig as far as market share goes.