How old is my leupold

Call Leupold to learn more. Every Leupold scope produced since will have a letter included in the serial number acting as a date-code. Scopes manufactured prior to will typically have a five or six digit serial number without a prefix or suffix. Scopes using a letter as a prefix the beginning of the serial number were produced between and Scopes using a letter as a suffix the end of the serial number have been produced after On the chart below, you will notice the letters I, O, and Q have been omitted as they are easily mistaken for 1, 0, and 0 respectively.

At this time, there are no American manufacturers that can supply enough high quality lenses to support our Golden Ring Optics production. Our lens systems are designed at Leupold, by American optical engineers in our state-of -the-art optics labs.

The glass is then procured from vendors who must meet stringent quality standards. Incoming parts are carefully inspected in our testing facility before they are accepted into the build process.

All major optics producers acquire some or all of their glass from the same sources as Leupold. Some of these sources are located domestically, some are European, and some are Asian. The source of the base material is not nearly as important as the optical design. Our glass is so much clearer due to our proprietary lens coatings, how we engineer the prescription of the lenses, and the construction of the optic itself. Changing the magnification in rear focal plane designs changes the subtension of the reticle, effectively changing the amount of holdover provided by the long-range aim points of these reticles.

This can be observed by placing the main aim point crosshair in the center of a target, changing the magnification, and observing the resulting effect on subtension. The observer will notice that though the main aim point remains in the center of the target, the holdover points appear to move up the target as magnification increases, and down the target as magnification decreases.

As such, faster loads with flatter trajectories will require a higher magnification setting than slower loads with more bullet drop. It is important to note that since the main aim point is located directly in the center of the field, it does not move as the magnification changes; this allows users of these reticles to sight-in on any magnification setting. One example commonly used to help visualize this effect involves viewing a deer yards away with a fictitious scope ranging from 1x to x.

If the scope is set to 1x magnification and the main aim point is placed directly on his shoulder, the deer appears rather small and occupies very little of the visual field.

Because the deer appears small and only occupies the very center of the field, the yard aim point is located well below the deer, representing many feet of drop. When x is reached his shoulder fills the entire visual field, placing the yard aim point only inches below the main aim point.

The result is that as magnification is increased, the target begins to fill more of the visual field, making the holdover points appear to walk up the target, thus representing less drop. As magnification is decreased, the target gets smaller, making the holdover points appear to walk down the target, thus representing more drop.

A Second focal plane reticle design creates a situation where the apparent size of the reticle does not change as the magnification is adjusted. In these scopes, the amount of target area covered by the reticle is inversely proportional to magnification; as the magnification is increased, the amount of target area covered by the reticle is decreased. This can be seen by looking through a variable magnification scope and increasing the magnification setting. As the power is increased, the apparent size of the target is increased, but the reticle appears to remain the same size; the result is that the reticle covers less of the target when the magnification is increased.

Second Focal Plane Reticles : Many hunting scopes are designed with rear focal plane reticles. This allows the reticle to appear bolder and heavier when set to low magnification, but appear thinner and more precise when set to high magnification. Most hunters set variable magnification scopes to a mid-level magnification for general carry situations, reducing magnification in low-light or heavy cover situations, and increasing magnification for longer, more precise shooting solutions. Second focal plane designs allow the reticle to appear bolder in low light, making them easy to see and faster to acquire when the light is fading.

This same property is advantageous in situations where heavy cover may be encountered, allowing easy differentiation between the reticle and vegetation. If a longer distance shot is to be taken, the magnification can be increased, creating a situation where the reticle covers less of the target, allowing the user to be more precise.

First Focal Plane Reticles : Mil and MOA based reticles 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. The letters I,O, and Q, were skipped so that they wouldn't be confused with numbers. When they reached Z in they started over at the beginning of the alphabet with letter A.

This time they used a suffix. You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum. It works, thanks. Interesting, thanks. Attached Files Leupold Date Codes. Very good. Thank you, good to have. Switch to Threaded Mode. Hunter's Campfire. Hunting Optics.

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