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I like the idea of having choice for the 5.7 round. Not much in the way of supply out there.

Only issue is them getting brass to load.

The 5.7 round has a coating on it to help with extracting from the chamber on the blow back action.

Once that coating is worn off, the case doesn't work so well in extracting.

SO, if they can solve that issue, all the power to them in loading up ammo.
 

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I like the idea of having choice for the 5.7 round. Not much in the way of supply out there.

Only issue is them getting brass to load.

The 5.7 round has a coating on it to help with extracting from the chamber on the blow back action.

Once that coating is worn off, the case doesn't work so well in extracting.

SO, if they can solve that issue, all the power to them in loading up ammo.
:evil:

Ummmmm, nooooo....

The coating is not on there to assist with "extraction" or it would be used on all types of ammunition, the coating exists on the rounds since they spin into and out of the ps90 magazine...

As for other ammo manufacturers I welcome it, would love to buy some subsonics I would be willing to use
Supposedly it does help aide in extraction, and proper function even in the FSN.
I can agree that the coating would aid extraction, but was that the sole purpose of the coating? I could have sworn it was for the ps90
I would agree that it's original intended sole purpose was to prevent galling in the ps90 magazines :D

http://fnforum.net/forums/handloading-reloading-ammo/22898-5-7-brass-coating.html

http://fnforum.net/forums/fn-five-seven/24440-coating-brass.html

http://fnforum.net/forums/handloading-reloading-ammo/422-laquer-coating.html

http://fnforum.net/forums/handloading-reloading-ammo/9949-5-7-reloading-sequence.html

http://fnforum.net/forums/fn-ps90/40585-new-ps90-brass-question.html

And there were other post as well.

I can't seem to find anything info stating that the coating is there for the rotation of the round in the magazine, or galling in the magazine.

Maybe jhs could chime in, and let us know where he received his info from. I believe he got it from Bob, at FNH USA.
 

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http://fnforum.net/forums/handloading-reloading-ammo/22898-5-7-brass-coating.html

http://fnforum.net/forums/fn-five-seven/24440-coating-brass.html

http://fnforum.net/forums/handloading-reloading-ammo/422-laquer-coating.html

http://fnforum.net/forums/handloading-reloading-ammo/9949-5-7-reloading-sequence.html

http://fnforum.net/forums/fn-ps90/40585-new-ps90-brass-question.html

And there were other post as well.

I can't seem to find anything info stating that the coating is there for the rotation of the round in the magazine, or galling in the magazine.

Maybe jhs could chime in, and let us know where he received his info from. I believe he got it from Bob, at FNH USA.
Correct. :?
hmm I'm trying to remember where I was told about the PS90 mags and the coating.
You can read this thread... http://fnforum.net/forums/5-7x28mm-ammunition/12719-case-life.html

Post number 3 is where you saw it. Notice "I believe..."

I believe the coating is meant more for smooth movement through the magazine since it must spin, while as a side it also preserves lifetime of the brass.

But the primary purpose is because of the way the ammo is fed through the magazine.
I don't disagree with the idea that the coating MAY help in this respect. But it was not the reason for the coating.
 
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