This is DUMMY AMMO and is UNABLE to fire any projectile, or be modified to fire any projectile.
Dummy Cartridge Keychain - INERT Ammo
CAW (Craft Apple Works) 2nd Generation Colt SAA HW
25 Rounds of Bulk .44 Mag Ammo by PMC - 240gr TC-SP
Pistol Rounds - D&B Militaria
44 Magnum Truncated Cone Soft Point Ammo for Sale by PMC - 25 Rounds
Guns Do Not Work That Way - TV Tropes
Dummy Bullets
25 - DUMMY .44 Magnum Ammunition - Fake Prop Plastic Ammo Cartridge Model
Blank (cartridge) - Wikipedia
A-Zoom 44 Magnum Snap Caps (6 Pieces),Brown : Gun Ammunition And Magazine Pouches : Sports & Outdoors
25 Rounds of Bulk .44 Mag Ammo by PMC - 240gr TC-SP
Why shouldn't I use a functional pistol as a prop for a film? - Quora