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.
While the German Shepherd is an intelligent dog breed, he is not for everybody and can be aloof towards strangers. The highly energetic dog does not appreciate being locked up at home and needs a lot of activity and exercise to keep himself happy.