Modern Cartridge Cases

32 S&W Long (AKA 32 Colt New Police) 78 Grain Lead RN

Cartridge Case, PDF, Cartridge (Firearms)

What are the Basic Parts of Ammunition

When was the first bottleneck cartridge invented? How does it work compared to previous straight-walled designs (if any existed at that time)? - Quora

Cartridge (firearms), Vietnam War

File:Modern-rifle-cartridges-case-5.56.jpg - Wikipedia

Winchester's New 400 Legend — Ron Spomer Outdoors

MTM CBD-1-40 Cartridge Display Board, Holds 42-.22CB

Hornady New Unprimed Brass 30-30 Winchester Cartridge Cases, 50

GUNS Magazine Lapua Launches New Loads, Brass for 2021 - GUNS Magazine

Modern Cartridge Design: Why New Rifle Cartridges Are Superior to the Classics