With the exception of the .220 Swift, the .17 Remington generates velocities exceeding those of all other commercially loaded cartridges by a considerable margin. Such extremely high speeds result in a flat trajectory which makes 300 yard shots on varmint a snap. The banjo string trajectory plus it's excellent accuracy, even with factory loads, and almost nonexistent recoil make the .17 Remington a pleasure to carry afield. 

This text is based on information from “Cartridges of the World”, Hodgdon reloading manual, the cartridge designer and/or own resources.