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.
Famously described by H. L. Mencken as a half-dog high and a dog-and-a-half long, the Dachshund ranks among the most popular dog breeds in America. These short-legged, long-backed dogs are brave, bold and sometimes reckless, willing and ready to take on the badgers they were bred to hunt. To the surprise of their many fans, a 2008 study in the journal Applied Animal Behaviour Science named the Dachshund the most aggressive of all dog breeds.