2 minute read
Scope
13 Rifle scope
A riflescope used for extended range shooting has numerous requirements. A high quality riflescope is imperative to successful application of the dope required to hit at extended range.
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Erector Tube
This the main body of the scope. In the scopes we usually use comes in 30,34 or 35mm’s. The larger tube dimension allows for more elevation adjustment. This is what dimension your scope rings are for.
ocular lens
This is the lens closest to the eye. This is where your reticle focus is adjusted. This traditionally has to be done to match your vision only one time. Many scopes have a lock ring once this is properly set. Some scopes have better engineered Ocular lens’ than others and are easier to properly get oriented with in shooting position. This is what is referred to as a generous eye box.
Objective Lens
This is the lens towards the muzzle of the gun. The scopes that we use typically have at least a 44mm objective lens and go up to 52mm or greater.
Reticles
TMOA RETICLE TREMOR RETICLE
BOONE AND CROCKETT DUPLEX RETICLE
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RBP Mountain Shooting Course Rifle scope - CON’T.
Reticle
The reticle is what you see when you look through your scope. There are many different styles of reticle. We find it VERY useful to have the ability to have a constant marked reticle that allows for use in holding wind, adjusting for follow up shots, measuring objects and even ranging. The reticle that we most commonly use has graduations evenly distributed 1 MOA apart on the horizontal and vertical axis. Remember RETICLE=RULER
TURRET
The turrets the raised knobs typically on top and the right side of the rifle scope. They are used to change the bullet impact by raising, lowering or shifting right and left the reticle. They are oftentimes called Elevation and Windage knobs. Remember TURRET=TWIST
ELEVATION AND WINDAGE TURRETS
These are the turrets that move the reticle up and down as well as left and right. The amount of movement is calibrated in specific units. The most common units are MOA, MIL, 1/4” per click etc… We use MOA’s and usually it’s 1/4 MOA per click and try to not go with finer adjustments or more coarse.
Parallax Adjustment
Traditionally on the left side of the riflescope, but not always. If the reticle and the image are not on the same plane this allows you to coincidence the images.