||A hollow point, thin jacketed, bullet that is designed to fragment into many (perhaps hundreds) of pieces upon impact. This type of bullet is designed to humanely kill a small animal such as a prairie dog or ground squirrel. Because varmints are typically hunted at long distances the bullet are typically made to be very accurate as well.
||The speed of a bullet or shot charge, measured at a certain point in it's travel.
||Designed to help cool and more particularly to direct the shimmering hot air that rises from hot barrels away from the line of sight in order to reduce disturbance in the view of the target