10 Facts About Iron sight

Sighting-in is a process in which the Iron sight axis is adjusted to intersect the trajectory of the bullet at a designated distance, in order to produce a pre-determined point of impact at that distance, known as a "zero".

Some front Iron sight assemblies include a detachable hood intended to reduce glare, and if the hood is circular, then this provides a reference where the eye will naturally align one within the other.

The rear Iron sight is completely discarded, and the rear reference point is provided by the correct and consistent positioning of the shooter's head.

The front Iron sight of a shotgun is a small spherical "bead" attached to the muzzle, acts as a reference, while the "rear Iron sight" is nothing more than a narrow longitudinal groove on the receiver and barrel rib.

Theory of operation behind the aperture Iron sight is often stated that the human eye will automatically center the front Iron sight when looking through the rear aperture, thus ensuring accuracy.

Ghost ring Iron sight is considered by some to be the fastest type of aperture Iron sight.

For instance, on many revolvers, the rear Iron sight consists of a fixed Iron sight that is a groove milled into the top of the gun's receiver.

The rear Iron sight is used for windage adjustment and to change the zero range.

Sight hoods reduce the chances of snagging an undercut Iron sight and are common on some types of rifles, particularly lever-action rifles, but they are prohibited in some shooting disciplines.

The contrast enhancement of the front Iron sight has to be somewhat larger compared to the contrast enhancement used for the rear Iron sight if all contrast enhancements should appear about equally large from the shooters perspective.