Posts Tagged ‘riflescope’

Picking the Right Rifle Scope

January 28, 2010

Most experienced hunters know that they need an excellence rifle scope to improve his hunting skill. Rifle scopes are also used by the military and law enforcement, and from time to time for trap shooting. Scopes are obtainable for crossbows, shotguns and handguns as well as for rifles. Spotting scopes are often used by golfers, hunters, and for birding. The purpose of a rifle scope is to permit the user to see further and more clearly than he would with the unaided eye. The scope magnifies the target and its surroundings. Lower quality rifles can benefit greatly when enhanced by good rifle scopes. Nikon, Leupold, Bushnell, Sightron, Aimpoint, and Burris are all manufacturers of excellence scopes. (more…)

What You Need to Know About Riflescopes

November 5, 2009

A riflescope shows a bullet’s point of impact and makes far-off targets and surrounding objects appear closer than they are. A riflescope is recommended for safer, more precise shooting in the field and on the range.

 

Diagram of a riflescope

rifle_diagram

 

 

 

 

Coated Optics

Coatings on lens surfaces reduce light loss and glare due to reflection for a brighter, higher-contrast image while reducing eyestrain. Bushnell riflescopes (one of my favorites) are coated with a microscopic film of magnesium fluoride. More coatings lead to better light transmission.

 

Types of Coating

Coated – A single layer on at least one lens surface.

Fully Coated – A single layer on all air-to-glass surfaces.

Multi-Coated – Multiple layers on at least one lens surface.

Fully Multi-Coated – Multiple layers on all air-to-glass surfaces.

 

Exit Pupil

The size of the column of light that leaves the eyepiece of a scope. The larger the exit pupil, the brighter the image. To establish the size, divide the objective lens diameter by the power (a 4×32 model has an exit pupil of 8mm).

 

Eye Relief

The distance a scope can be held away from the eye and still present the full field-of-view. Bushnell riflescopes provide an extra margin of comfort and recoil safety with extended eye relief and soft neoprene eyepiece guards.

 

Field-of-View (F.O.V.)

The side-to-side measurement of the circular viewing field or subject area. It is defined by the width in feet or meters of the area visible at 100 yards or meters. A wide field-of-view makes it easier to spot game and track moving targets. Generally, the higher the magnification, the narrower the field-of-view. (more…)