Polymer cases?

[parabarbarian]

These look interesting.

eXtreme Polymer: METALLIC AMMUNITION .. WITH PLASTIC CASE?

Extreme Polymer Research’s Polymer Handgun Cartridge Cases | The Firearm Blog

 

[cjw3]

It was tried 25 years ago with a plastic case and aluminum head. They didn't do too well, maybe just ahead of their time. The polymer style looks OK so they might generate some interest.

Scroll down to the second photo.

THE CARTRIDGE COLLECTOR

 

[lebomm]

I worked and became friends with the son of USAC's founder, and he gave me a bunch of their .38 Spl case components in various stages of manufacture, and a handful of their proprietary bullets. They went on to do some contract research with FN for the production of 5.56mm and Cal. .50 ammunition of similar construction, but that had a plastic web between the powder chamber and the base of the bullet to help maintain chamber pressures. This web was, of course , blown out when the ctg was fired, so when reloading, everything fwd of the primer pocket had to be replaced. Again, not commercially successful.

Larry

 

[SWP357]

I can buy "Once Fired" brass, for $0.05 like 45acp, and use it forever, I don't need more plastic JUNK around!

 

[MrPhil]

SWP357 is hinting around about something. Come on man, let it out. Tell us how you REALLY feel.

 

[Titegroups]

Hard to imagine getting the wall thickness thin enough and strong enough to allow for the bullet diameter. It better be cheap!

 

[blujax01]

The LGS has several hundred boxes of the USAC bullets at $6/. I bought some of the .38 Sp 158 gr. swc last month and tried reloading them in standard cases. It was a nightmare of monumental proportions. A waste of time and money.