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 French bulldog was the 58th most popular dog in 2002 and has steadily risen through the ranks, becoming the ninth most popular dog according to the AKC's website in 2015. This smart, playful little dog took the dachshund's spot in the top 10 with his arrival.