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.
Can you teach an old dog breed new tricks? You can if the breed is the border collie. The border collie is not your typical dog breed. Deemed the smartest of all dogs by psychology professor Stanley Coren in his book, The Intelligence of Dogs, the tough little sheepdogs have data to back up the IQ claims. The two smartest dogs on record, with the proven ability to understand up to 340 words, are both border collies.