Early steel AK-47 magazines are 9.75 in (248 mm) long, and the later ribbed steel AKM and newer plastic 7.62Ã39mm magazines are about 1 in (25 mm) shorter. The transition from steel to mainly plastic magazines yields a significant weight reduction and allows a soldier to carry more ammunition for the same weight.
The world loves the Border Collie for their lively, spirited temperament and their proficiency at dog sports like flyball and Frisbee games. But this breed is also one of the most intelligent, ranking number one on some scales of canine smarts.
The 10 Smartest Dog Breeds. 1  Poodle â Have your pick: small (Toy Poodle), medium (Miniature Poodle), or large (Standard Poodle). 2  Siberian Husky â This dog breed is much more than just a sled puller. 3  Doberman Pinscher â This noble dog breed was represented as a monster in the 1980s on TV and in films.