Complex sentence: In 2005/2006, there was a shortage of 7.62x39 ammunition in the United States, causing prices to almost double in some cases and Wolf's ammo to nearly disappear from the U.S. market in late 2006-early 2007.
Split into simpler sentences: In 2005/2006, there was a shortage of 7.62x39 ammunition in the United States. This had the effect of causing prices to almost double in some cases and Wolf's ammo to nearly disappear from the U.S. market in late 2006-early 2007.