Kynoch 303 British ID

[FoymountFarm]

Left in photo, Kynoch Birmingham 303 British, 1940 manufacture. Would I be correct to conclude the cartridge on the right is also a 1940 Kynoch Birmingham with an alternate headstamp?

Thanks.

 

[Painkillers]

Safe bet. The crimp is also different. Same components, different assembly machines. Whether this was a different line in the same factory, or a sibling factory would require some research to answer.

 

[FoymountFarm]

Safe bet. The crimp is also different. Same components, different assembly machines. Whether this was a different line in the same factory, or a sibling factory would require some research to answer.

Thank you.

 

[green]

From 1927-40 .303" made to aircraft spec was IDed by 4 digit date in hs, general service by 2 digit. In 1940 all .303" was made to aircraft standard and made with 2 digit date hs.

 

[FoymountFarm]

From 1927-40 .303" made to aircraft spec was IDed by 4 digit date in hs, general service by 2 digit. In 1940 all .303" was made to aircraft standard and made with 2 digit date hs.

Thank you.

 

[Potashminer]

From 1927-40 .303" made to aircraft spec was IDed by 4 digit date in hs, general service by 2 digit. In 1940 all .303" was made to aircraft standard and made with 2 digit date hs.

What or where is "hs"? Is that "head stamp"?

 

[FoymountFarm]

What or where is "hs"? Is that "head stamp"?

That's what I took from it.