LIST: Head Stamps.

Articles, Howtos and Lists
1

For those of you that collect old ammo or casings, this might be of some help.

https://www.cartridgecollectors.org/headstampcodes

2

Mosin 7.62x54R ammo
http://7.62x54r.net/MosinID/MosinAmmoID.htm

303 Brit ammo
http://www.dave-cushman.net/shot/303headstamps.html