Classification<unk> s are classified according to the speed of the projectile using the Gustilo open fracture classification: *Low-velocity: Less than 1,100 ft/s (340 m/s) Low velocity<unk> s are typical of small caliber handguns and display<unk>  patterns like Gustilo Anderson Type 1 or 2<unk> s *Medium-velocity: Between 1,200 ft/s (340 m/s) and 2,000 ft/s (610 m/s) These are more typical of shotgun blasts or higher caliber handguns like magnums. The risk of infection from these types of<unk> s can vary depending on the type and pattern of bullets fired as well as the distance from the firearm. *High-velocity: Between 2,000 ft/s (610 m/s) and 3,500 ft/s (1,100 m/s) Usually caused by powerful assault or hunting rifles and usually display<unk>  pattern similar to Gustilo Anderson Type 3<unk> s. The risk of infection is especially high due to the large area of injury and destroyed tissue. Bullets from handguns are sometimes less than but with modern pistol loads, they usually are slightly above , while bullets from most modern rifles exceed . One recently developed class of firearm projectiles is the hyper-velocity bullet, such cartridges are usually either wildcats made for achieving such high speed or purpose built factory ammunition with the same goal in mind. Examples of hyper velocity cartridges include the .220 Swift, .17 Remington and .17 Mach IV cartridges. The US military commonly uses 5.56mm bullets, which have a relatively low mass as compared with other bullets (40-62 grains); however, the speed of these bullets is relatively fast (Approximately , placing them in the high velocity category). As a result, they produce a larger amount of kinetic energy, which is transmitted to the tissues of the target. However, one must remember that high kinetic energy does not necessarily equate to high stopping power, as incapacitation usually results from remote<unk> ing effects such as bleeding, rather than raw energy transfer. High energy does indeed result in more tissue disruption, which plays a role in incapacitation, but other factors such as<unk>  size and shot placement play as big of, if not a bigger role in stopping power and thus, effectiveness. Muzzle velocity does not consider the effect of aerodynamic drag on the flight of the bullet for the sake of ease of comparison.
Gunshot wound
Centipede bite
Stingray injury
Dog bite
Cat bite
Dental avulsion
Spider bite
Facial trauma