In the Eastern California town of Clovis, California, at the foot of the Sierra Nevada mountains, Marilyn Williams, a woman who earned a sharpshooter medal in high school ROTC, scared a couple of burglars so badly that they dropped their loot and ran. She did it with a Marauder air rifle. The Marauder is one of the more powerful popular air rifles. With .25 caliber pellets, the pre-charged pneumatic can reach energy levels (45 foot-pounds) about two thirds of a .22 short cartridge , one of the lowest powered firearm cartridges. The Marauder has multi-shot capacity. It sports a...