cartridge identification please

[tomsk]

Hi is there anyone out there can identify the cartridge on the left please it is .455 cal and has the royal labs headstamp with a C and a italic 1 it is 60.75mm long.
the 303 is for scale.
Many thanks
Tom

 

[Jimiles]

Tom

It's a .45" Gardner Gatling made by Royal Laboratories anytime after 1896. It's correct designation is '.45" Cartridge Machine Gun Ball Cordite Mk 1'.

Jim

 

[tomsk]

thanks for that jim