Longest recorded sniper kills

Reports regarding the longest recorded sniper kills that contain information regarding the shooting distance and the identity of the sniper have been presented to the general public since 1967. Snipers have had a substantial history following the development of long distance weaponry. As weapons, ammunition, and aids to determine ballistic solutions improved, so too did the distance from which a kill could be targeted. In mid-2017 it was reported that an unnamed Canadian special forces operator, based in Iraq, had set a new record of , beating the record previously held by an Australian sniper (also unnamed) at . Although optical equipment such as rangefinders and ballistic calculators have largely eliminated manual calculations to determine elevation and windage, the fundamentals of accurate and precise long-range shooting remain essentially the same since the early history of shooting, and the skill and training of the shooter, and the shooter's spotter where applicable, are the primary factors. Accuracy and precision of ammunition and firearms are also still reliant primarily on human factors and attention to detail in the complex process of producing maximum performance. The modern method of long-distance sniping (shots over ) requires intense training and practice. A sniper must have the ability to accurately estimate the various factors that influence a bullet's trajectory and point of impact, such as the shooter's distance from the target, wind direction, wind speed, air density, elevation, and even the Coriolis effect. Mistakes in estimation compound over distance and can cause a shot to only injure, or to miss completely. Any given combination of firearm and ammunition will have an associated value, known as the circular error probable (CEP), defined as the radius of a circle whose boundary is expected to contain the impact points of half of the rounds fired. If the shooter wishes to improve accuracy, increase range, or both, the accuracy of estimates of external factors must improve accordingly.