Polyfrang. No wear after 10000rds?

[Evilwhiteguy]

Has anyone looked into polyfrange? I was looking for some frangible 7.62 nato and 5.56 to practice some close range steel target shooting and someone from their company told me the fbi choose them and have no/little barrel wear after 10,000rds .. thats amazing. Is their a way to convert this practice ammo for your typical barrel burners? Or is frangible not good at any long distance? Could you just coat a round with this material to get around barrel wear?? And does it expand and grip the rifling like typical ammo? It would have to right? Or else how does it stabilize... here is the website if anyone wants to look

PolyFrang LLC - THE NEXT EVOLUTION OF FRANGIBLE AMMUNITION

PolyFrang LLC - Unlocking Innovation: Metal Impregnated Polymer Frangible Ammunition is for use in training, defense and duty applications. The lead-free projectiles are made with Metal Impregnated Polymer (MIP) technology designed to disintegrate upon impact, virtually eliminating ricochets and...

www.polyfrang.com

 

[diverdon]

Sometimes when some one is selling something they tell you things that arn"t quite true.

 

[DIBBS]

If it sounds too good to be true....

 

[b2lee]

So...somehow a poly bullet soaks up all that heat and reduces all that abrasion by the powder....

 

[Evilwhiteguy]

So...somehow a poly bullet soaks up all that heat and reduces all that abrasion by the powder....

Yea I guess their has to be wear from powder and heat... maybe just alot less? Idk? Could the polymer be soft enough not to wear the metal itself? But I can't see it being softer than lead though. To soft and it would disform. So idk, seems odd

If it sounds too good to be true....

Yea I'm guessing you might be right.

Sometimes when some one is selling something they tell you things that arn"t quite true.

Very true....

 

[THEIS]

Hi,

So the polymer blend concept actually works for friction wear but does NOT increase barrel life due to heat wear.

Also what strikes me as "odd" with this company is that they list a USA based "exporter" as most of the International Distributors they have highlighted on their website.

They have all the map icons on various countries as if they have in country representation in those countries but that is not completely correct.

Edited To Add:
And the 10k round "test" was done with chrome lined barrel on an Armalite 5.56.....even with normal ammunition there wouldn't be much barrel wear on that chrome lined barrel, lol

Sincerely,
Theis

 

[Vivacious Stallion]

Sometimes when some one is selling something they tell you things that arn"t quite true.

Whaaaaaaaaaat????

 

[vh20]

Barrels don't wear out by abrasion from the bullet against the rifling. They wear out by erosion in the throat that is caused by the plasma-hot gasses coming out of the case mouth on ignition. You can usually take a worn-out barrel, set it back by and inch and re-cut the chamber and you're back to shooting again. Frangible ammo has a purpose for a particular desired terminal performance, but that's about all I can think of.

Also, barrels are considered consumables anyway. So, how much more will you pay for the frangible ammo over 10,000 rounds? Is the difference more than enough to pay for a re-barreling? It very well could be. I haven't seen ELR performance of frangible rounds, but I know of NO ONE who is using them for that purpose where it really matters.

 

[b2lee]

I got a dumb question for the subject. Frangibles are designed to hit a target and burst into fine dust as not to cause secondary damage or come back at the shooter....right?.....and/or dump 100% of it's energy at impact......so......

What is the likelihood of a 230gr frangible in a 1/9tw barrel doing 3000fps....staying together until it hits my target? Is it more or less likely to go *poof*?

 

[hlee]

I got a dumb question for the subject. Frangibles are designed to hit a target and burst into fine dust as not to cause secondary damage or come back at the shooter....right?.....and/or dump 100% of it's energy at impact......so......

What is the likelihood of a 230gr frangible in a 1/9tw barrel doing 3000fps....staying together until it hits my target? Is it more or less likely to go *poof*?

Well, copper jacketed bullets will “poof” if spun too fast so...

 

[b2lee]

Well, copper jacketed bullets will “poof” if spun too fast so...

I haven't had an A-Tip or Berger go poof at those speeds yet....I've seen a metric crap ton of 147 ELD-M's go poof though....wait..they have polymer tips

 

[Qazwsx]

Some places shoot SRTA, a blue plastic bullet, because the limited penetration let’s you put targets outside of normal bullet trap related constraints.

I doubt it wears a gun as fast as m855a1, but doubt ig really matters in the long run other than said training benefit.

 

[Strykervet]

Barrel wear isn't throat erosion.

I have some "frangible CQB" (that's what Israel call 'em) Hirtenberger German half copper jacketed black flat tip plastic projectile ammo (Germans call it "short range" practice ammo). What it's intended for is practice where ranges don't permit 5.56 rifle ammo, such as pistol ranges. But it'll still turn an asshole inside out at under 50m and not take out the next door neighbor. It's pretty neat shit and impossible to find, I'll probably wind up selling it 1x1 to ammo collectors before long (and make a killing I hope).

Most folks haven't seen it, but I bet if it were reissued it'd be pretty popular today.

Anyway, I bet it doesn't cause much throat wear simply because the bullet is so light and I doubt there is as much pressure/heat going on there. I could be wrong. It will cycle a typical M4 action.

Definitely my number one choice for anything less than M193 and if they still made it, it'd be fantastic CQB practice ammo. Almost no recoil too, like there was much to being with but more like a .22 than not. I'd be afraid to use a can with it but if it worked, that'd be ideal too.

 

[vh20]

Barrel wear isn't throat erosion.

Of course not. Which is the limiting factor for barrel life? That's what they're talking about (or at least implying).

The rounds you are talking about are quite different than the ones the OP is asking about. Those are full-house rounds intended for "high-lethality". Their 5.56 round is listed at 3100 fps. My point was that normal rounds don't wear barrels out because normal bullets wear down the rifling, so changing the bullet doesn't really increase barrel life because the throat is where they die. I don't see how these rounds would be any different in that regard.

 

[b6graham]

Of course not. Which is the limiting factor for barrel life? That's what they're talking about (or at least implying).

The rounds you are talking about are quite different than the ones the OP is asking about. Those are full-house rounds intended for "high-lethality". Their 5.56 round is listed at 3100 fps. My point was that normal rounds don't wear barrels out because normal bullets wear down the rifling, so changing the bullet doesn't really increase barrel life because the throat is where they die. I don't see how these rounds would be any different in that regard.

they dont use powder. that's how.

 

[vh20]

Cool!

 

[steve123]

Hmm, is that kinda like a blanket of carbon fiber that's wrapped around a barrel dissipating heat