See Range, Effective

The spread between specified upper and lower limits for prepayments in a structured CMO such as a PAC.

The range in which a competent and trained individual using the firearm has the ability to hit a target sixty to eighty percent of the time. This ability to hit the target is effected by the length of the barrel of the firearm, the actual cartridge fired, and quality of construction. In reality, most firearms have a true range much greater than this but the likely-hood of hitting a target is poor at greater than effective range. In the firearm lists, the effective ranges are based on personal knowledge and palladium books materials. There seems to be no good formula for the effective ranges of the various firearms.

linear part of a meters performance curve.