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SCOPE, OPTICS & BALLISTIC INFO & FAQs. There are often many posts or questions about riflescopes. Or 4x. 32mm. Broken down, in the first case this means a 3 power (the . It is defined by the width in feet or meters of the area visible at 1.

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. THE OPTICAL TRIANGLEWith scopes, there is an . These scopes have the reticle placed in the objective end, or forward of the erector system.

This causes the reticle to be magnified at the same rate as the target. When you increase the magnification the reticle will continue to cover the same amount of the target as it did at low magnification.

One advantage of having the reticle in the first focal plane is with a multi- point mil- type reticle because it stays the same size relative to the target. In this position, the reticle will not be magnified at the same rate as the target. In other words, when you increase the magnification on a rear focal plane scope, the reticle will subtend less of the target than it does at low magnification. In Treatment S02 Ita Download Chrome. Most European scopes have the reticle in the first focal plane and the reticle will remain constant, however quite large on high magnification.

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For most American hunting applications it is too large. Most European hunting is not done at such long distances. Reticles such as a mil dot are based on a specific subtension and require exact feature spacing to be accurate; if this type of reticle is used in a rear focal plane design, the scope must be used on a single, specific magnification (typically high power). Placing this type of reticle in a front focal plane design allows the operator to use the scope on any magnification while retaining the exact spacing of the reticle features.

If the reticle cell has shifted, due to time and recoil, it will create excessive parallax, meaning the reticle apparently wanders around the aiming point when you shift your head behind the scope. Parallax is visible as an apparent movement between the reticle and the target when the shooter moves his eye anyplace but dead- center behind the scope's field- of- view - or, in extreme cases, as an out- of- focus image.

Most center- fire riflescopes under 1. SCOPE CONSTRUCTIONConstruction will make keep that new scope reliable and working right way down the road. Johnson says to always complete the windage and elevation adjustments with a CLOCKWISE screw thrust. Diamond. Coat exceeds military standards for hardness and durability. There are also lens coatings that do not contribute to the optical quality of the scope, but rather aid other concerns. First of all, it.

As we all know, with normal firearms recoil is generated by the bullet and gases exiting the muzzle. As you increase the weight and speed of the bullet and the speed and volume of the gases, recoil will increase. The only thing mitigating the recoil generated is the weight of the firearm. Heavier guns recoil less than light guns all other things being equal. All recoil is generated to the rear. On an airgun, a typical pellet will weigh only a minuscule 7. Spring- piston rifles and pistols are complicated, heavy mechanisms and consequently often weigh as much as a normal firearm, or more.

Therefore you could reasonable expect the recoil generated in them should be absolutely negligible. Adobe Photoshop Lightroom 5 0 Cracked Wheat here. With that in mind, how was it possible then for a first- quality rifle scope that will hold up to the recoil of a . Magnum to be ripped apart by a spring- piston air rifle that doesn't kick at all?

Unlike regular firearms, spring- piston recoil is NOT generated by the pellet and the air being expelled out of the muzzle. When the sear is released, the highly compressed heavy spring will jump forward with tremendous force pushing the piston ahead of it. As the spring and piston are moving forward, the gun is recoiling back against your shoulder with significant pressure. As the piston comes to the end of the compression chamber it will actually strike the wall with substantial force, and the gun will now bounce forward, recoiling away from you. For a scope to withstand the recoil pulse away from the shooter, it has to be constructed specifically for that task. Mostly this shows up as a reticle sitting loose or pointing in the wrong direction in the sight picture.

Sometimes the reticle adjustment mechanism fails. Sometimes the warnings come in a more subtle manner in that point of impact changes all the time for no apparent reason. Therefore, with a scope designed for a normal firearm may, or may not, have the reticle braced front and back. It varies from brand to brand, even perhaps from model to model.

It is less likely that the bargain- priced rifle scopes feature this. Therefore some standard scopes will hold up to a spring- air rifle without issue, while others will fail. Even some expensive firearm scopes may fail miserably on a spring- piston air rifle. One cannot use any blanket statement that includes . So it lessens the crapshoot factor. You should check the scope specifications and warranty provisions before buying. Besides being constructed specifically to withstand a forward and rearward recoil pulse, what else distinguishes an airgun scope from a normal rifle scope?

Actually the most important characteristic of an airgun scope these days is its ability to focus down to 1. Ten meters is the standard distance that most airgun competitions are held.

As it turns out, many of the main stream scope manufacturers have substantially re- engineered their construction designs allowing at least some or even all of their rifle scopes to be used on a . An air gun scope is therefore defined as one with special construction features to handle the double recoil of a spring- piston airgun - and which has also been designed for parallax free viewing at 1. So . In the case of Burris and Leupold, there. In the case of other manufacturers like Weaver, and Simmons, there is a definite difference in both construction and optics. For BSA, it. Some of their rifle scopes are mechanically compatible with air gun shooting and some aren't. However, none of their rifle scopes are optically compatible with air gun shooting. With Tasco, two of their rifle scopes are both mechanically and optically compatible with air gun shooting.

They are the 8 X 4. X 5. 6 Tactical scope and the Mag 4. X2. 4. Interestingly, this particular Mag 4.

U. S. The other scopes in the Mag 4. Other Taco rifle scopes do meet the mechanical requirements but not the optical while even still others will correct parallax at 1. You figure it out. The old saying, . A one piece mount is more sturdy and can withstand the intense recoil of magnum air rifles.