Why are bullets made up of brass, not aluminum?

There are many benefits to using brass bullets instead of aluminum ones when shooting firearms — including improved accuracy and performance

Fastest Rifle Cartridges: 9 Choices With the Best Bullet Velocity

KGUmusic, Brass

Materials for 50 Caliber Bullets - Lilja : Lilja

How Long Does Ammunition Last? – Silencer Central

ammo is so rare that I polished it instead of taking it to the range. Right side is not polished. : r/WA_guns

Home - NovX Ammo - NOVX

Why aren't bullets made of iron? - Quora

Brass-Cased Ammo at : Brass Casings Explained

Aluminum-Cased Ammo, The Ultimate Guide: Benefits, Drawbacks, and Comparison to Brass and Steel-Cased Ammunition

40 S&W: Nearly Obsolete, Can it Make a Comeback? - Guns and Ammo

Does Ammo Go Bad?

Considerations for Handloading World War II-Vintage Rifle Am - Guns and Ammo

[ IMPORTANT ] VMS RACING Brand (NOT generic). Comes in VMS RACING Branded BOX. Brand New in Box / Never Used / Never Installed. High Quality T-6061

VMS Racing 50 Cal Caliber BRASS Finish BULLET ANTENNA Heavy Gauge CNC Machined Billet Aluminum Short Compatible with Ford F150 F250 F350 F450 F550