France - Military equipment

3 leather cartridge belts :

Filled with empty shotgun cartridges for a hunting rifle.
The belts are made of sturdy brown leather.
The belts are completely filled with EMPTY shotgun cartridges.
The different colors of the empty shells indicate different calibers.
Yellow, for example, is universally used for caliber 20 and red or orange often denotes caliber 12.
One is from the brand: Sacar. Length: 120cm.
The other 2 are handmade hunting belts. Lengths: 105cm and 110cm.
Estimated period: 1970-1980.
Very nice items, collectible and usable.