[Basher]

No brass inside the polymer. It's a brass base and rim, with the brass extending about 1/2" up the length of the case, and then it's pure plastic. I'll post pictures later tonight if I can get a clear close-up shot of one.

No, they're not reloadable. I have no idea if they're berdan or boxer primed, but as you stated the polymer wouldn't have a sufficient hold to retain another round.

[AZ-Ranger]

They are not reloadable. They are made by Natec and I have shot about 500 rounds of the stuff without so much of a hiccup. I liked the ammo, hell I figure it is better than Wolf in my AR's.

[Basher]

The few rounds I tried didn't cause any problems either. While I'm not really shooting my AR for extreme accuracy, though, I won't if a weak crimp on the round would affect accuracy, or for that matter if the polymer provides a consistent hold round to round. Would be interesting to find out, though.

[azsarge]

Have you fired several magazines in rapid succession, AZ Ranger?

A very hot barrel extension/chamber can melt the adhesive that secure the brass to the polymer and cause ONLY the brass to be extracted.

When the next round is chambered, bad sh*t happens.  

This ammo is fine for plinking.  

However, any weight savings acquired through carrying alot of it on a load bearing rig is negated by the fact that I would NEVER USE THIS AMMO IN ANY STRESSFUL SITUATION.

The Army had trials.  They aren't buying any.  That says it all for me.

[AZ-Ranger]

Have you fired several magazines in rapid succession, AZ Ranger?

A very hot barrel extension/chamber can melt the adhesive that secure the brass to the polymer and cause ONLY the brass to be extracted.

When the next round is chambered, bad sh*t happens.  

This ammo is fine for plinking.  

However, any weight savings acquired through carrying alot of it on a load bearing rig is negated by the fact that I would NEVER USE THIS AMMO IN ANY STRESSFUL SITUATION.

The Army had trials.  They aren't buying any.  That says it all for me.

I can't say that I have. Yet when I am not in three gun competition, I hardly ever shoot in rapid succession. Most of my target practice is done by the numbers. I think that if a barrel is hot enough to melt the polymer, you run into the danger of cook off anyway.
Hell anything is better than wolf.

[azsarge]

Have you fired several magazines in rapid succession, AZ Ranger?

A very hot barrel extension/chamber can melt the adhesive that secure the brass to the polymer and cause ONLY the brass to be extracted.

When the next round is chambered, bad sh*t happens.  

This ammo is fine for plinking.  

However, any weight savings acquired through carrying alot of it on a load bearing rig is negated by the fact that I would NEVER USE THIS AMMO IN ANY STRESSFUL SITUATION.

The Army had trials.  They aren't buying any.  That says it all for me.

I can't say that I have. Yet when I am not in three gun competition, I hardly ever shoot in rapid succession. Most of my target practice is done by the numbers. I think that if a barrel is hot enough to melt the polymer, you run into the danger of cook off anyway.
Hell anything is better than wolf.

Not the polymer, but rather the adhesive that holds the polymer to the brass.

Cookoff?  Nah, I know how to drop a mag.

YMMV, but mine hasn't.

[mohawkdude]

My Dad and I shot about 200 rounds of these polymer ammo today and we didn't have one probelm with the AR-15 we were shooting. We did have problem with the zinc cased Silver Bears though.

[AZ-Ranger]

Have you fired several magazines in rapid succession, AZ Ranger?

A very hot barrel extension/chamber can melt the adhesive that secure the brass to the polymer and cause ONLY the brass to be extracted.

When the next round is chambered, bad sh*t happens.  

This ammo is fine for plinking.  

However, any weight savings acquired through carrying alot of it on a load bearing rig is negated by the fact that I would NEVER USE THIS AMMO IN ANY STRESSFUL SITUATION.

The Army had trials.  They aren't buying any.  That says it all for me.

I can't say that I have. Yet when I am not in three gun competition, I hardly ever shoot in rapid succession. Most of my target practice is done by the numbers. I think that if a barrel is hot enough to melt the polymer, you run into the danger of cook off anyway.
Hell anything is better than wolf.

Not the polymer, but rather the adhesive that holds the polymer to the brass.

Cookoff?  Nah, I know how to drop a mag.

YMMV, but mine hasn't.

Never had cookoff. I don't shoot full or bump fire auto.
All I am saying is the stuff has to be better than wolf. Wolf and Olympic are the only two types of ammo that will not feed into my HK G36 clone.