If you're having problems with an AK mag jamming, you probably need to replace the spring. As for clearing the initial jam, typically, either the front or rear of the cartridges would be angled down...
Neither. Each performs as intended for the role which it was developed for.
neither gun is bigger just the bullets are bigger... The AK-47 has7.62x39mm round. The AK-74has the 5.45x39mm round.
I don't think they make .223 round ak47 magazines or ak47 round ar15's I've never even heard of a ak47 clip that fits an ar15
The AK47 was made in caliber 7.62x39. The AK74 was designed much later, and uses the 5.45x39 cartridge.