Cartridge (firearms) - Wikipedia

Silencer (firearms) - Wikipedia

460 S&W Magnum - Wikipedia

Pistol, Gun Wiki

Rifle cartridge - Wikipedia

Cartridge (firearms) - Wikipedia

Smith & Wesson Model 29: Dirty Harry's Go-To Pistol

455 Webley, Gun Wiki

Weapons in Redemption 2, Red Dead Wiki

Headspace (firearms) - Wikipedia