Gun maker Sturm Ruger (RGR) has climbed sharply on sentiment that firearm sales will rise due to fears that a re-elected President Obama will tighten gun control laws. The stock jumped above the 50-day line in huge volume Wednesday, the day after Obama won a second term in the White House. It's now just below a 52.13 buy point in a deep and long cup with handle. Gun sales had already been rising smartly ahead of the election. The FBI said Nov. 2