Originally Posted by Danny
brass is what typically ammo cases are made out of. Some companies use a very soft steel, which is acceptable but is not reloadable due to the properties of steel and i believe the primers they use are not removable. I believe some companies use aluminum cases, these too are not reloadable to my knowledge.
Brass is by for the most desirable, it can be reused time and time again and is soft but strong (not harmful on the gun, but very safe).
And just for kicks and giggles:
BRASS
STEEL with polymer coating
ALUMINUM
there are no aluminum cases. its just nickel plated brass.... why, i don't know.
brass is soft and malleable, resistant to heat and stress.... steel is not.... well mainly the flexible part. a shell must be re-sized before you can reload it.
also... some manufacturers make rounds with a "boxer Primer" and some make them with "berdan primers".... its a little inaccurate because the primer is the same but one case has 2 holes, where the primers is and some have only one in the middle. the berdan primer i believe is the one with 2 holes....
funny thing is, is that one was a European design and one was an American design. we, in America use the European design, and vice versa.
when you remove a spent primer from a case, you use a die with a punch in the center to knock out the primer..... you cant do that with 2 holes that are offset.
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