I don't know why anyone would have a difficult time with the concept of aluminium (UK Sp.) cartridge cases. Blazer ammo has been around forever, not exactly hard to verify:
GREAT ECONOMY THROUGH GREAT TECHNOLOGY. If casual practice is getting expensive, look to Blazer®. Blazer uses aircraft-grade aluminum that's heat-treated to make an economical cartridge case. As the case is the most expensive component of any cartridge, our aluminum case lets us give you a cartridge that has all the performance of brass-case ammo at a more attractive price.We load Speer bullets and CCI primers, both with a long record of happy users. You also get selection, from 25 Auto to 45 Colt. Blazer also features a selection of bullet weights and styles, something you can't get in typical "white box" ammunition or imports. Blazer is a great option to reduce the cost of practice, letting you shoot more, and more often.
Ironically, I haven't found Blazer ammo to be all that cheap.
Factoid: The cartridge case for the GAU-8 Avenger 30 mm mounted in the A-10 Thunderbolt II is aluminium.
MSgt, USAF, Retired
NRA Life Member
The hardest thing to explain is the glaringly evident which everybody had decided not to see. - Ayn Rand
Last edited by Overkill0084; 04-01-2011 at 05:54 PM.