For many years, the Swarovski Optik website featured a blog with interesting technical articles. (Unfortunately some of these articles have been taken offline.) In the “On Target” series of blog stories, Swarovski provided a handy explanation of how optics systems work, with exploded diagrams of rifle scopes, spotting scopes, and binoculars. We’ve reproduced the key diagrams here. CLICK HERE for Swarovski On Target Archive.
Scope Terminology Focusing Lens
The focusing lens is an adjustable lens inside the optical system for focusing the image at different distances…. In the case of rifle scopes, apart from focusing, the focusing lens also facilitates parallax compensation.
Objective Lens
The objective lens is the optical system’s front lens group facing the object and operates like a converging lens. Its purpose is to display an image which, at the image plane, appears upside down, laterally transposed and reduced, and which is subsequently displayed correctly again by the reversal system.
Diopter Adjustment
For rifle scopes, the reticle can be focused using the diopter adjustment on the eyepiece, thereby correcting any visual impairment. [Editor’s Note: Movable eyepiece diopter adjustment is not offered on all rifle scopes. It is a useful feature on Swarovski and other premium scopes. This allows shooters who need eyeglasses to get a sharply focus image even without wearing corrective lenses. Of course shooters should always wear ANSI-certified eye protection. With the diopter, folks who need correction can use inexpensive, non-Rx safety eyewear instead of expensive prescription safety glasses.]
Reversal System
The purpose of the reversal system is to reverse the image by means of prisms in binoculars and telescopes, and lenses in rifle scopes….The lens reversal system is needed in rifle scopes to control the variable magnification and move the exit pupil[.]
Resource tip by EdLongRange. We welcome reader submissions.
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Optics companies from around the globe had scores of new scopes and optics products on display at SHOT Show 2020. We visited Athlon, Burris, Bushnell, Leica, Leupold, Kahles, IOR/Valdada, March, Nightforce, Sightron, Swarovski, Vortex, and Zeiss displays. Here are some of the notable scope and optics products we saw this year.
Vortex Optics — Viewing Vortex Scopes with Carl Bernosky
One of the highlights of our show was meeting our friend Carl Bernosky at the Vortex Booth. Carl, a 10-time National High Power Champion, showed us the Vortex Golden Eagle. This affordable 15-60x52mm Second Focal Plane (SFP) optic is very popular with F-Class competitors, as it offers a 4X magnification range all the way up to 60 power. The Golden Eagle’s $1499.99 price is 40% less than some other brands with similar specs.
March Optics — New PRS Scope, New Genesis
At the March Optics booth we met Gary Costello, a talented British F-Class competitor. Gary showed us a number of new offerings, including March’s new 4.5-28x52mm PRS Scope (above). Compact and light weight (29.8 oz), this features a 25° wide angle, fast-focus eyepiece and HM lens technology with two new reticle options. This new scope boasts a whopping 36 Mils elevation and 20 Mils windage travel.
Also new for 2020 is March’s 5-42x56mm FFP Long Range Tactical scope suitable for PRS, ELR, and long range hunting. This boasts 40 Mil elevation, 14 Mil windage, and two new reticles, one of which is a tree reticle optimized for ranging and rapid hold-offs/hold-overs. This features a 26°, fast-focus eyepiece. Weight is 33.5 ounces.
This is the new 4-40x52mm FFP “Mini Genesis” featuring High master lens technology. This boasts 86 MILS of elevation, 24° fast-focus eyepiece, and zero set elevation. The Genesis technology provides an optically-centered lens capable of engaging targets up to 3 miles.
Leica — New 5-30x56mm PRS FFP Scope
At the Leica pavilion at SHOT show, we checked out the Leica’s new PRS 5–30x56i riflescope (SRP: $2,895) This is an impressive First Focal Plane (FFP) scope with 6X zoom, and a full 32 MILS (100+ MOA) of elevation range. This scope comes with a zoom ring throw lever and zero-stop turrets. Leica will offer the PRS 5-30x56i scope (MSRP $2699.00) with three reticle options: iL-4A, iBallistic, and iPRB. The iPRB is a modern “tree” reticle designed with input from Precision Rifle Blog (PRB) editor Cal Zant. CLICK HERE for PRB full report.
Zeiss — Rings with Integrated Level, Ultra-Compact Binoculars
At the Zeiss booth we checked out the beautifully-crafted Zeiss Precision Rings with level. Offered in both 30mm and 36mm, these rings feature an integral anti-cant bubble level in the top half, easily visible from any shooting position. Constructed of 7075-T6 aluminum, these rings are available in low, medium, and high heights, all with matte-black, hard-anodized finish. Also new this year are ZMOAi-T20 and ZMOA-T30 reticles for the Zeiss Conquest V4 riflescope line.
Hunters and sportsmen should check the ultra-compact Victory Pocket 8×25 binoculars. These feature a unique off-set hinge, allowing them to be VERY slim when folded. These binocs blow away anything we’ve ever seen that is so compact and easy to carry.
Nightforce — New SOCOM FFP Scope and new NX8 series
At the Barrett booth we viewed Nightforce’s new SOCOM 7-35x56mm F1 Scope developed for the U.S. Military. Called the P-VPS for “Precision Variable Power Scope”, this features a Termor 3 Reticle and integrated top rail for mounting a laser. Nightforce’s MIL-SPEC ATACR™ 5-25×56 F1 and the MIL-SPEC ATACR™ 7-35×56 F1 variants of the Nightforce Optics ATACR product line were selected by United States Special Operations Command (USSOCOM) to fill the Precision-Variable Power Scope component of the Miniature Aiming Systems – Day Optic (MAS-D) Program.
For 2020, Nightforce will also be selling new NX8 riflescopes, with an 8X zoom, evolved from Nightforce’s NXS series. The NX8 2.5–20x50mm F1 is available in MOAR and Tremor3 reticles . Likewise the NX8 4–32x50mm F1 is offered with MOAR ($2,150 MSRP) and Tremor3 ($2,400 MSRP) reticles. Both NX8 scopes feature DigIllum reticle illumination, ZeroStop technology, and either MOA or mil-radian adjustments.
Swarovski — Z8i Series with 8X Zoom Ratio
At the Swarovski Booth, a SHOT Show attendee checks out new reticle options.
At SHOT 2020, Swarovski showcased its impressive Z8i series riflescopes, which offer 8X zoom range. These, we think, are particularly good for long range hunters. You get a wide field of view for scanning, then plenty of magnification for a precise shot at very long range. There are five Z8i models: 1-8x24mm; 1.7-13.3x42mm; 2-16x50mm; 2.3-18x56mm; and 3.5-28x50mm.
Konus — Universal Cantilever Scope Mount
If you need more forward placement of a long optic, Konus has an effective new accessory. Attached to a Picatinny rail base, the new Konus Universal Adjustable Cantilever scope mount ($89 MSRP) allows you to move your optic forward. It adjusts from 6.5 inches to 8.3 inches in length, with seven settings in between. The mount fits both 1-inch and 30mm riflescope tubes. We also like the fact that this simplifies movement of a scope from one rifle to another.
Could this be the world’s smallest spotting scope? Well the Noblex NS 8-24×50 ED is certainly the world’s smallest spotter with high-grade ED (extra-low dispersion) glass. Crafted in Germany by Noblex GmbH, this mini-spotter weighs just 1.17 lbs. (530 grams) with eyepiece. As you can see, the entire unit could easily fit in a glovebox, and yes, we were impressed with the quality of the glass despite the small size. Could this be the ideal competition spotter for watching mirage during a match? 24-power is plenty for that task.
100+ More Optics Products — Specifications and Photos
Want to see more Riflescopes, Spotting Scopes, and Rangefinders? CLICK HERE for the SHOTBusiness.com 2020 Optics Guide. This features specifications and prices for 100+ products.
Coalinga Range in California. At dawn we could clearly see 7mm and .30 Cal bullet holes at 1000 yards.
While attending the CA Long Range Championship a few seasons back, we had the opportunity to test the performance of a high-magnification (63X) spotting scope in near-ideal conditions (maybe the best I’ve ever witnessed). On the event’s last day we arrived at 5:45 am, literally as the sun was cresting the horizon. I quickly deployed our Pentax PF-100ED spotting scope, fitted with a Pentax SMC-XW 10mm fixed-power eyepiece. When used with the 100mm Pentax scope, this 10mm eyepiece yields 63X magnification. Befitting its $359.00 price, this eyepiece is extremely clear and sharp.
At the crack of dawn, viewing conditions were ideal. No mist, no mirage, no wind. The first thing this Editor noticed was that I could see metal nail heads on the target boards. That was astonishing. As soon as the first practice targets went up, to my surprise, I could see 6.5mm, 7mm, and 30-caliber bullet holes in the white at 1000 yards. No lie…
That’s right, I could see bullet holes at 1000. I know many of you folks may not believe that, but there was no mistaking when I saw a 7mm bullet cut the white line separating the Nine Ring and Eight Ring on the target in view. (I was watching that target as the shot was fired and saw the shot-hole form). And when I looked at the 30-cal targets, the bullet holes in the white were quite visible. In these perfect conditions I could also make out 3/8″ bolt heads on the target frames.
The Human Factor
When viewing the bullet holes, I was using my left naked eye (no safety glasses or magnification). I also had a contact lens in my right eye (needed for distance vision). To my surprise, while I could see the bullet holes without much difficulty with my left eye, things were fuzzier and slightly more blurry with the right eye, even when I re-focused the scope.
Then I invited 3 or 4 shooters to look through the scope. One younger guy, with good eyes, said immediately: “Yeah, I can see the holes — right there at 4 o’clock and seven o’clock. Wow.” Some older guys, who were wearing glasses, could not see the holes at all, no matter what we did to the scope’s main focus and diopter adjustment.
The lesson here — if you have to wear glasses or corrective contact lenses, just that extra bit of optical interference may make a difference in what you can see through the scope. Basically anything that goes between the scope eyepiece and your eyeball can degrade the image somewhat. So… you may be better off removing your glasses if you can still obtain good focus sharpness using the diopter adjustment and focus ring. I did the left vs. right eye test a half dozen times, and I could definitely see small features at 1000 yards with my naked eye that I could not see with my right eye fitted with a contact lens. (I did have to re-focus the scope for each eye, since one had a corrective lens while the other did not.)
Mirage Degrades Image Sharpness and Resolution
The “magic light” prevailed for only an hour or so, and then we started to get some mirage. As soon as the mirage appeared I was no longer able to see raw bullet holes, though I could still easily see black pasters on the black bulls. When the mirage started, the sharpness of the visible image degraded a huge amount. Where I could see bullet holes at dawn, by mid-morning I could barely read the numbers on the scoring rings. Lesson: If you want to test the ulimate resolution of your optics, you need perfect conditions.
Chromatic Aberration Revealed
As the light got brighter and the mirage increased I started to see blue and red fringing at the edges of the spotting disk and the large numerals. This was quite noticeable. On one side of the bright, white spotting disc you could see a dark red edge, while on the other side there was a blue edge (harder to see but still present).
The photo below was taken through the Pentax spotter lens using a point and shoot camera held up to the eyepiece. The sharpness of the Pentax was actually much better than this photo shows, but the through-the-lens image does clearly reveal the red and blue fringing. This fringing is caused by chromatic aberration — the failure of a lens to focus all colors to the same point. Chromatic aberration, most visible at high magnification, causes different wavelengths of light to have differing focal lengths (see diagram). Chromatic aberration manifests itself as “fringes” of color along boundaries that separate dark and bright parts of the image, because each color in the optical spectrum cannot be focused at a single common point on the optical axis. Keep in mind that the Pentax does have “ED” or low-dispersion glass, so the effect would be even more dramatic with a cheaper spotting scope.
If you wonder why top-of-the-line spotting scopes (such as the $2980 Swarovski ATS-80 ) cost so much, the answer is that they will deliver even LESS chromatic aberration at long range and high magnification. With their exotic apochromatic (APO), ultra-low-dispersion glass, a few ultra-high-end spotting scopes can deliver an image without the color edging you see in the photo above.
The Pentax PF-100ED is a heck of a spotting scope. Any scope that can resolve bullet holes at 1000 yards is impressive. But if you want the ultimate in optical performance, with minimal chromatic aberration, you may need to step up to something like the 88mm Kowa Prominar TSN-884 with Flourite Crystal lenses ($2450.00 body only), or the 82mm Leica APO ($3899.00 with 25-50X eyepiece).
EDITOR’s NOTE: The purpose of this report is to show what is possible… in IDEAL conditions. With this Pentax 100mm, as well as a Swarovski 80mm, we have often been able to resolve 6mm bullet holes at 600 yards. But again, that performance requires really good viewing conditions. By 10:00 am at my range, even with the 100mm Pentax at 75 power, seeing 6mm bullet holes is “iffy” at best. So don’t go out and mortgage the house to buy a $4000 optic with the hope that you’ll be able to spot your shots at 1000 yards. If conditions are anything less than perfect, you’ll be lucky to see bullet holes at 500 yards. The real solution for very long-range spotting is to set up a remote target cam that broadcasts a video picture to a screen at your shooting station.
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Are you shopping for a long range optic? Unfortunately, it is pretty much impossible to “test drive” a half-dozen or more optics. Thankfully, there are some video reviews on the internet that are, for the most part, helpful. Pew Pew Tactical (PPT) recently did a lengthy comparison of nine long range scopes. For each model PPT examined clarity, eye relief, reticle design, parallax, and windage/elevation travel. For each optic PPT also provides short videos showing the operation of the controls. FULL PPT REVIEW HERE.
NINE Long Range Scopes Compared
1. Vortex Strike Eagle 4-24×50mm
2. Vortex Viper PST II 5-25×50mm
3. Leupold VX3i LRP 8.5-25×50mm
4. Leupold Mark 5HD 5-25×56mm
5. Burris XTR II 5-25×50mm
This is actually a pretty good video. The host, Joel, tests and compares the Leupold Mark 5 vs. the Athlon Argos. Joel considers a variety of performance categories including clarity, tracking, elevation travel, ergonomics, and reticle options. This video asked the question “Can a $400 scope hang with a much higher priced optic?” You might be surprised how well the Athlon actually did.
Kalibre 22 — High-End Tactical Optics Comparison
In this video, Todd Hodnett explains the pros and cons of different brands and types of scopes. Scopes tested include Horus, Leupold, Nightforce, Schmidt & Bender, and Vortex. He uses the scopes in the field, and actually does a pretty good job describing the pros and cons of each model.
Top 10 Reviews — Manufacturer Marketing Videos Compilation
This video covers ten different scope models, from budget to high-end. For the most part the scopes appear in cost order, with the more affordable optics first. This YouTube video is mostly pieced together from manufacturer marketing footage, but it does cover a wide variety of scope options.
Please note, the above video does has some actual review segments, but nearly all the content is provided by the scope makers. So the Top 10 rankings are somewhat arbitrary. Nonetheless it is handy to have ten scopes covered in a single video. In order of appearance, here are the ten scopes featured, with video time marks if you want to “fast forward” to particular models.
TEN Scopes In Order of Display
10. Burris Veracity Riflescope: 00:23
9. Vortex Viper PST Gen II Riflescope: 01:24
8. Nikon BLACK FX1000 Riflescope: 03:18
7. ATN X-Sight 4K PRO Riflescope: 04:29
6. Bushnell Engage™ Riflescope 06:00
5. Leica Magnus i Riflescope: 07:50
4. Nightforce ATACR 5-25x56mm F1 Riflescope: 08:29
3. Vanguard Endeavor RS IV Riflescope: 10:31
2. Leupold Mark 8 Riflescope: 12:33
1. Swarovski Z8i Riflescope: 14:21
Great Deals on Vortex Now
Looking for a great deal on a new scope? Leading vendor EuroOptic has a wide variety of Vortex Scopes at deeply discounted close-out prices now:
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When shopping for a new riflescope or spotting scope it’s easy to get confused by all the technical terminology. Do you wish you had a better way to compare scopes — beyond just size, weight, and price? Well Swarovski Optik can help. The Swarovski Hunting Blog offers a helpful guide to technical terms used when comparing scope specifications. Here are some important definitions, expressed in layman’s language:
Objective Lens Diameter
The objective lens diameter determines the size of the optical system’s entrance pupil. The bigger the objective lens diameter, the more light the system can capture. However, the size of the objective lens does not determine the size of the field of view.
Exit Pupil
The size of the Exit Pupil is determined by the objective lens diameter and the magnification. If you look at the eyepiece from a distance of around 30 cm (11.8 in), the Exit Pupil appears as a bright disc.
For calculating the Exit Pupil the formula is:
Exit Pupil = objective lens diameter ÷ magnification (expressed in power number).
The larger the Exit Pupil, the more light will reach the eye.
Field of View
The Field of View is the size of the circular section of the area which can be observed when you look through a long-range optical device. In the case of rifle scopes, it is specified at a distance of 100 meters or 100 yards. For example, 42.5 m at 100 m or 127.5″ at 100 yards. As an alternative, the Field of View can also be stated in degrees (e.g. 6.6°).
NOTE: The technically-feasible size for the Field of View is essentially determined by the magnification. The higher the magnification the smaller the Field of View.
Twilight Factor
The Twilight Factor defines the optical system’s performance in poor light. The statement “the greater the twilight factor, the better the suitability for twilight” only applies if the exit pupil is larger than or at least as big as the eye’s pupil. The pupil in the human eye can only open to around 8 mm. As we get older, our eyes become less flexible, which limits our ability to see things in twilight or at night. Therefore [an optic’s] exit pupil cannot always be fully utilized.
For calculating the Twilight Factor the formula is:
Twilight Factor = root of ( magnification x objective lens diameter ).
NOTE: Spotting scopes have extremely high twilight factors because of their high magnification and large objective lens diameter. But [when used at high magnification] their small exit pupil can make them [somewhat difficult] to use in twilight.
Leupold recently annouced a new, premium spotting scope with outstanding low-light performance. Leupold’s new Santium SX-5 Spotter features a jumbo 80mm objective with a 27-55X zoom eyepiece. The SX-5 is offered in both straight and angled versions. Suggested retail price (including eyepiece) is $2339.00. Best “street price” should be around $1800.00. That positions Leupold’s SX-5 above Vortex, Burris, and Pentax price-wise, but the SX-5 is over $1000 less than high-end, 80mm-class Swarovski and Leica spotters which approach $3000 with eyepiece.
We’re interested to see how this new Leupold stacks up against the Kowa TSN-880 Prominar spotter ($2450.00 on Amazon) which has been a benchmark in the 80mm class. Leupold worked hard to give the SX-5 “second to none” low-light performance. The goal was to create a truly superior optic for hunters who may spend long periods “glassing” for game at dawn and dusk.
The SX-5 features High Definition (HD) glass with proprietary lens coatings to maximize light transmission and color fidelity. Zac Bird, Product Manager for Leupold states: “The human eye is most sensitive to colors outside the middle of the spectrum during dawn and dusk, when game is moving — the Twilight Max HD Light Management System literally helps you see more in less light. The superior glare reduction it offers ensures the maximum amount of usable light gets to your eye. Our proprietary lens coatings and superior optical design help deliver the very best contrast and resolution”
Features of New SX-5 Santiam HD 27-55x80mm Spotting Scope: – Full-Diameter Focus Ring for smooth and precise focusing
– Oversized Eyepiece for reduced fatigue
– Guard-Ion Rain-Shedding Lens Coating
– Built-in Retractable Lens Shade
– Tough Rubber Armor Coating
– Full Lifetime Warranty
Price vs. Performance in the Field
Should a hunter spend a couple grand ($2000) on a spotting scope? It depends on your priorities. Leupold says: “Don’t underestimate the importance of a quality spotting scope. Your spotter can mean difference between tagging out or going home empty-handed…. Ultimately, you can’t shoot what you can’t find.”
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Looking for a good job in the firearms industry? The NSSF has you covered. The NSSF Career Center offers up-to-date job listings, powerful search features, and a mobile-friendly interface. It’s easy to upload your Resumé, and the Job Alert feature can send you new listings via email as soon as they post. Visit jobs.nssf.org for current employment opportunities in the shooting, hunting and outdoor industry.
Check out the latest job listings on the NSSF Firearms Industry Jobs Website
There are some interesting opportunities right now. Both Hornady and Smith & Wesson (American Outdoor Brands) are looking for engineers. Do you enjoy social media? Well Swarovksi Optik needs a Media Relations Specialist. The Rocky Mountain Elk Foundation is seeking a Regional Director, and Century Arms needs a Sales Manager.
Click to See All Current Job Offerings:
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Are you feelin’ lucky? Then here is a contest you may want to enter. This new contest has not one but THREE very impressive prize packages that each include a rifle (or shotgun), premium hunting gear, plus a guided duck/quail hunt. The contest prize rifles — Steyr Scout or Steyr Pro THB 6.5 Creedmoor — provide real incentive to enter this contest. Those are nice rigs.
Steyr Arms celebrates the fall deer season with a month-long Big Buck Down contest with THREE big prize packages — one awarded every 10 days in September. All three prize packages will include a Steyr or Merkel firearm, Jagdhund and X JAGD gear, plus a two-day, two-person duck/quail hunting trip. The first two give-aways also include a 3.5-18x44mm Swarovski Z5 riflescope.
The program runs from September 1 through September 30. Those that enter by September 10 will be eligible to win all three prize packages (but you can only win once of course). Along with a firearm, and premium hunting gear, each package includes the winner’s choice of a two-day guided quail or duck hunt for two from Intercoastal Safaris, complete with meals and beachfront lodging in the Florida/Alabama Gulf Coast. CLICK HERE for PRIZES.
THREE PRIZE PACKAGES — One Package Every Ten Days
To enter the Big Buck Down! Giveaway, visit www.buckdowngiveaway.com. NOTE: You must agree to sign up for the sponsors’ e-mail newsletters. After entering the giveaway, contestants can receive additional entries by visiting sponsor websites and social media pages. There is no purchase necessary to enter. Due to legal restrictions in California, New York, Florida and Rhode Island, residents of those states are not eligible to win.
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Field Test and Review by Colton Reid
For years my “go-to” optic for hunting mule deer has been a high-quality set of Swarovski porro prism binoculars. They offer a sharp image, good low light performance, and were about half the price of a comparable roof prism design. I also carry a small, handheld laser rangefinder in my pocket while hiking. This setup has been “good enough” for a long time despite the inconvenience of separate optics and having to scramble for the rangefinder every time I spotted a buck.
But as I get older this setup becomes less favorable and my reasons for upgrading to binoculars with rangefinding capability are outweighing my reasons against. Accordingly, I decided to test if rangefinder (RF) binoculars could really deliver an improvement over separate binoculars and LRF. Fortunately, AccurateShooter.com acquired a new Zeiss Victory 10×42 RF and let me field test it. This is a premium unit, with a premium price tag. The 10×42 Victory RF currently sells for $3399.99.
First impressions were good. The Victory RF employs an Abbe-Koenig roof prism with a comfortable-to-hold black body that has a padded soft-touch surface. The Victory RF is marginally heavier than my older porro prism binocs. The central focus wheel is large, easy to turn, and is positioned to allow index and middle fingers to simultaneously work the focus wheel and rangefinder.
Great Glass with Excellent Low-Light Performance
Diopter adjustment was a bit more complicated due to the built-in rangefinder display, but once set didn’t require further adjustment. When all knobs were adjusted, optical performance was excellent. Compared with my tried and true Swarovski Habicht 10×40 porro prism binoculars, the Zeiss Victory RF exhibited an equally sharp image that was also brighter in the fading daylight. Additionally, the Victory RF had a narrower depth of field than the old Swaro porro. This produced a noticeable “3D” effect that helped the target pop out of its surroundings. The optics alone make the Victory RF an excellent product, but the Victory RF’s built-in rangefinder made these binoculars truly exceptional.
Testing the Victory RF Laser Rangefinder Capability
Having rangefinder functionality inside quality optics was remarkably convenient. This allowed spotting and ranging targets without having to re-acquire an image using separate optics. It also ensured that the image for ranging was the same magnification and quality as the binoculars. Beyond just convenience, the Victory’s ranging capability was superb.
During one testing session at dusk, distances out to an astonishing 2600 yards could be repeatedly measured. To dispel my skepticism I verified all ranges with Google Earth (Google earth image + range image). Ranging game-sized objects beyond 800 yards required a stable surface (or tripod) to hold the red dot on target. However, the rangefinder had no problem ranging trees or large boulders at longer distances by hand. Measurement to measurement variation was within about 5 yards, which is likely due to movement from the user, especially at long distances.
In most outdoor environments I’ve hunted, ranging nearby vegetation or rocks gives enough accuracy in distance to obtain a satisfactory ballistic solution. In my experience, the vast majority of hunters are taking their shots inside 300 yards. At that distance or closer, hand-holding the Victory RF works well. For shots that exceed 300 yards, where bullet drop is a concern for hunters, the rangefinder is able to incorporate ballistics profiles from the Zeiss Hunting App running on a smart-phone, and deliver a precise ballistic solution visible IN the binoculars.
[Editor: Press a button and right in the glass you can see the calculated elevation correction in inches or cm, with clicks in MILS or MOA. A Long-Range Only video review confirmed how well this works: “The sync was almost immediate. Gives you custom drop right in your binoculars, with one push of a button.” The Zeiss RF also calculates true horizontal distance for angled shots.]
The Victory RF was able to range larger objects at 2000 yards and beyond with the unit placed on tripod or solid support. In the example above, the Victory RF was targeted on a specific object on a ridge over one mile away. The Victory RF’s 1928-yard read-out was confirmed with a Google Earth GPS trace.
Smart RF Binoculars with Built-in Ballistics Solver
Customized ballistics data can be transferred to the Victory HF’s display via a Bluetooth connection with the Zeiss Hunting Application*.
The Zeiss Hunting App deserves its own full review. But I can say the interface is clean, minimal, and FREE. There is much to be desired from the notes section, but the Ballistics Calculator makes it one of the better hunting apps I’ve used. Because ballistics data can be transferred to the rangefinder display, the App is a “must-have” accessory for the Victory RF.
KEY FEATURES: Ballistics Solver, GPS Tagging, Weather Forecast, Field Notes with Photos
Comments on Zeiss Victory RF
Despite the Victory RF’s excellent optics and impressive ranging performance, there is some room for improvement in this product. The red rangefinder display proved difficult to see against a tan/brown backdrop during bright daylight hours. Also I noted that, if you look away from the center of the field of view, the read-out seems to dim. At full LED brightness the red dot target was always visible but still showed a tendency to blend in with a tan backdrop. [Editor: The Zeiss RF does offer 11 brightness curves, and the manufacturer notes the unit features an automatic brightness control.]
Setting the dual eyepiece diopters was also a bit more complex than a single diopter system. The “trick” was to first focus the rangefinder display using the right diopter wheel. After that the central wheel and left diopter could be focused as needed. The accompanying neck strap and binocular case were well made and may work well for birding or nature hikes, but would not be preferred for hunting. When performing extreme physical activity, a shoulder harness or chest pack carrying case such the Badlands Bino X (shown below) is needed for support and fast extraction.
CONCLUSION — Superb Binoculars with Outstanding Rangefinding Capability
All together the Victory 10×42 RF is one of the finest binoculars I have had the pleasure of using. The crisp image coupled with a reliable long-distance rangefinder gave me the confidence to spot and stalk game over a mile away. As a hunter who spends 70% of his time behind optics I am convinced that with the Victory RF my ability to observe and plan in the field has dramatically improved. And with a little bit of care, these binoculars will be a reliable field favorite for years to come.
Zeiss Victory RF Binoculars Features:
– Laser Ranging capability from 16 to 2,500 yards
– On-board B.I.S. II ballistic calculator with integrated sensors
– Custom ballistics input via smartphone or tablet
– Bluetooth connectivity
– Holds custom ballistic profiles
– Measures angle, temperature, and air pressure
– Calculates equivalent horizontal distance
– Displays holdover in inches/cm, MOA, MIL and clicks
– Features Scan and Target modes
– Automatic LED brightness adjustment (11 brightness curves)
– User-Programmable ontrol buttons and display
– One-touch ranging (right or left hand)
– Syncs personal settings and ballistic profiles to and from the RF
– Large focusing wheel for minimal rotation
– FL glass, ZEISS T and LotuTec® coatings
About the Author, Colton Reid, Ph.D.
Colton Reid is a hunter and outdoorsman, who is also an optics expert. A Ph.D. engineer in the high-tech industry, Colton works with high-resolution electro-optical measuring devices for microchips. Raised in Colorado, Colton’s favorite activity is a backcountry hunting adventure. AccurateShooter.com is fortunate to have Colton review optics products.
* The Zeiss Hunting App integrates many useful features — ballistics solver, compass, GPS tagging, hunt history. The “Field Notes” function can record a wide variety of info — save photos, record shots and hits, log animal sightings, and even plot game locations on a map. Shots can be tagged via GPS through the shooter’s and the target’s position, and then displayed on a map. The Field Notes hunt diary shows all entries in chronological order.
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At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, optics, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. RCBS — Buy Green Get Green Rebate Program
RCBS just kicked off its best rebate program of the year. The Holiday 2017 Buy Green Get Green promo is simple — buy ANY RCBS product over $49.99 and you qualify. There’s no restricted list of “qualifying” products. The more you spend, the more you get back — up to $175.00 total. If you are considering purchasing a single-stage press, electronic powder dispenser, progressive press, or a full reloading kit, save big with this promotion. It is good for purchases made through the end of the year, December 31, 2017. Download REBATE Form HERE.
2. Brownells — Remington RP9, $199.99 with $100 Rem Rebate
This may be the best pistol deal of the year. Right now Brownells.com is selling the Remington RM9 for just $299.99. NOTE: This item shows out of stock, but you can back-order the Rem RM9 and still get this price. But there’s more! You can get another $100.00 off with Remington’s Pre-Black Friday Rebate Program for pistol purchases made now through November 18, 2017. So you can get this brand new 9x19mm full-size, polymer-framed pistol for just $199.99. Plus if you use Brownell’s Coupon Code “H7L” at check-out, you’ll save another $20.00 and get free shipping. That lowers your actual cost for the RP9 pistol to $179.99, or $189.99 including Brownells $10 FFL processing fee. A new pistol for $189.99 is a heck of a deal. GET Remington Rebate Form.
3. Amazon — Sightron 10-50x60mm SIII LR MOA Scope, $973.06
Match photo courtesy Varide Cicognati, Sightron dealer in Italy.
At the recent IBS 600-yard Nationals, 4 of the Top 10 shooters (including the 2nd-place finisher) used Sightron 10-50X scopes. Though reasonably priced, this 10-50x60mm optic is definitely good enough to win long-range benchrest and F-Class matches. If you’re looking for a high-magnification, variable-power target scope (with 1/8 MOA clicks), the Sightron 10-50x60mm is a smart choice. There is nothing else at the $1000.00 price point that can touch it. The new Nightforce 15-55x52mm Competition Scope is a great product, but it costs $2352.00, more than TWICE the price of the Sightron 10-50x60mm. The money you save (vs. 15-55X NF) could pay for four barrels or a custom action. On a value-for-money basis, then, the Sightron 10-50x60mm makes sense for competitors on a budget. NOTE: Other Sightron 10-50x60mm scopes with FCH, Mil-Dot, or Target Dot reticles run $1000-$1030 on Amazon.
4. Amazon — MTM AC4C Ammo Crate with 4 Ammo Boxes
Here’s a very cool product from MTM at a great price. The versatile MTM AC4C Ammo Carrier features four, lockable polymer ammo cans in a fitted, four-slot 23.5” x 11.3” x 7.5” carry crate. This makes it easy to haul four full ammo cans. Actual purchasers have raved: “Moments after I received this storage box set I ordered another. Very well built and great design. Awesome and a steal at the price.” Right now this is on sale at Amazon for just $29.99 with free prime shipping. The system includes four lockable, O-Ring 11.3″ x 7.2″ x 5″ ammo cans (AC30T) for multi-caliber ammo storage. The crate even includes tie-down points for transport in a cart or ATV. NOTE: Earlier this summer this MTM AC4C system sold for $39.99. The current $29.99 price represents a 25% savings! See price chart below.
5. Natchez — Lowest Prices Ever on Swarovski Z3 Scopes
Swarovski makes superb optics. The riflescope glass is exceptionally clear and sharp, and the controls have a refined feel. No question, Swarovski makes a premium product. And right now you can get Swaro scopes at exceptionally low prices. These are some of the best deals we’ve ever seen on Swarovski Z3 riflescopes. Jason Gebhart, Swarovski Regional Sales Director said, “The Z3 is a proven product… this Z3 Seasonal Savings Event gives people an excellent opportunity to purchase the finest optics in the world and become part of our family at an incredible price.”
The Ruger LCP is the #1-selling pistol in the USA according to Gun Broker. And now you can get this compact carry piece for just $169.00 at Bud’s Gun Shop. Great deal. The Ruger LCP is light (9.6 ounces) and compact (5.16″ OAL), so you’re more likely to carry it regularly. The .380 ACP cartridge is not as powerful as a 9x19mm or 40 S&W to be sure, but when your life is on the line, a small gun is certainly better than no gun. For those looking for a light-weight, easy-to-conceal handgun, this little Ruger is a solid choice. Owner reviews have been positive and the $169.00 price (with free shipping) is hard to beat. That’s for payment via money orders, checks, or echecks; credit card price is $174.07.
7. American Eagle Pistol Ammo, 25% OFF Manufacturer Rebate
Rebate Extended to December 31, 2017!
Here’s a great Rebate offer from Federal Premium Ammunition. Now through December 31st, 2017, you can get 25% OFF the cost of Federal American Eagle brass-cased pistol ammo. We’ve used this ammo in .380 ACP, 9mm Luger, .40 S&W, and .45 ACP and we can say it’s good stuff — very reliable and cleaner that some other less-expensive brands. Midsouth Shooters Supply has qualifying American Eagle Ammo in a variety of calibers: .25 ACP, .380 ACP, 9mm Luger, .38 SPL, .357 SIG, .357 Magnum, 40 S&W, .44 Rem Magnum, .45 ACP. Midsouth’s American Eagle Ammo starts at $11.99 for 50 rounds of 9mm Luger. The 25% OFF Super Savings Rebate reduces the price to just $8.99 per 50-ct box. CLICK HERE for Rebate Form.
8. CDNN — 51-Piece Driver Set (Flat-Head, Phillips, Hex, Torx)
This Outers-brand, 51-piece set contains all the drivers you could ever need: Flat-head, Phillips, Hex (Allen), and Torx. Priced under ten bucks, this driver set offers great value for the money. Even if you already own high-quality Allen and Torx wrenches, you can buy this as a spare set for your gun room. And this also makes a great holiday “stocking stuffer” for gun guys. These drivers work great for installing scope rings or bases, or everyday use around the home.
• Molded Driver with Magnetic Tip
• 15 Flat Head Bits
• 10 Hex Bits (inch)
• 9 Hex Bits (metric)
• 4 Phillips Bits
• 9 Torx Bits
• 2 Extra Long Phillips Bits
• 1 Hex to Square Adapter
We use 1″-diameter Target Spots for sight-in and practice at 100-300 yards. These bright red/orange self-adhesive dots are easy to see. At 100 yards the high-contrast black diamond centers provide precise aiming points. We found this 10-pack of target spots on Amazon at a rock-bottom price. You get 630 total stick-on dots for just $9.65 with FREE Shipping. You can also get 360 Birchwood Casey 1″ dots from Midsouth for just $3.15, but shipping is extra. If you’re already ordering something from Midsouth, you may want to add the dots to your order.
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The Kahles 10-50x56mm MOAK Long Range Riflescope By James Mock
The Kahles company of Austria is very old — dating back to 1898. With its long history, Kahles (two syllables, pronounced “Kah – less”) claims to be the oldest rifle scope manufacturer in the world.
What are the features of this scope that endear it to the discriminating long range shooter? First, it offers serious magnification — a true 10X-50X. It has a rather unique, centrally-mounted parallax adjustment control integrated with the elevation turret (i.e. they share the same axis). Included with the scope is a large ring which can be attached to the parallax control to facilitate adjustments without removing one’s head from the stock. Another unique feature is a small red and white pin that indicates how many revolutions one has made. If one red band shows, the scope is in the first revolution; with a one red and one white band, it is in the second revolution, and so on.
This scope has a 56mm lens, fast-focus eyepiece, and 1/8th MOA adjustments. This is an expensive scope ($2799.00 at Brownells), but there are no short cuts in its construction. The lenses have a proprietary “AMV” multi-layer coating that’s claimed to transmit almost 100% of the light. Also, there is an oil-phobic coating to resist scratches and contaminates such as oil or dirt from sticking to the lens. The scope is nitrogen-filled and features hardened steel mechanisms for adjustments.
Kahles 10-50x56mm Specifications:
Magnification: 10X to 50X
Objective lens: 56mm
Reticle: Second Focal Plane with MOA subtensions at 40X power
Tube diameter: 30mm, Nitrogen filled
Length: 16.9 inches
Weight: 31.4 ounces
Click Value: 1/8 MOA with 20 MOA per revolution
Range of adjustments: 5.3 ft. elevation/ 3.6 ft. windage @ 100 meters
Field of view at 100m: 8.7 feet @10X and 3.6 feet @ 50X
Parallax Control: Parallax ring is centrally mounted on same axis as elevation knob.
Parallax Range: 8m to infinity
Eye relief: 3.74 inches
I first got to test the Kahles in competition at a 300-yard match. The scope performed flawlessly with spot-on, positive adjustments. The central-mounted parallax ring worked perfectly, giving me parallax-free viewing with the ring set on 300. The quick focus ocular adjustment also brought the image into sharp focus. We had some mirage today, but I had no problem seeing bullet holes with the scope set at 40x. The MOA reticle served me well by allowing me to know how many 1/8 MOA clicks to adjust from the sighter target. I shot my Bartlein 1:13.5″-twist 6mm PPC barrel with N133 and Bart’s 65gr Super Man BT bullets. I shot 296-4X out of 300 possible. The 65gr BT seems to be at its maximum range and I was edged out by an excellent 297/?x by a 6mm Dasher. The scope certainly did its part, but I didn’t.
Shooting the Kahles 10-50X at 200 yards before 300-yard match. The quality of this scope makes zeroing it a pleasure. The clicks are positive and audible.
Kahles Performs Superbly Shooting the Square
With every new scope that I test, I shoot the “square” (a box test). This target below above has ½ inch squares and my aim point was the small square in the lower right quadrant. I shot two shots at it then moved the windage knob 5 MOA left and fired one. I then moved 5 up and fired again; moved 5 right and fired; followed by my final shot after clicking 5 MOA down. This last shot went through the hole made by the original two shots! That’s amazing. These were shot at 100m without wind flags.
Shooting with the Kahles in 600-Yard Competition
On the 3rd Saturday of the month, we shoot a 600-yard match consisting of four, 5-shot targets on the IBS target. The 600-yard match demands a scope that is very reliable and “spot on” in its adjustments. Since I don’t have a 600-yard range on which to zero, I simply zero at 100 yards and click up 11 MOA. At our matches we shoot steel gongs for sighting in. There is NO sight-in period before the match — all competitors are expected to be “on target” upon arrival. I had to put my faith in the Kahles click values.
Our 600-yard match was my first opportunity to use the Kahles at that distance. I shot the scope set at 40X all day. The crisp adjustments allowed me to get on target quickly and in the first match, I shot a respectable 48/50 with 1X. NOTE: for this 600-yard match I replaced my 6 PPC barrel with an 8-twist 6mm Dasher. I use 32.8 grains of Varget pushing a Bart Sauter 105gr rebated boat tail bullet.
Testing with Hood Scope Checker
Many shooters’ primary concern with scopes used for competitive shooting is their ability to hold point of aim (POA). To test the Kahles, I mounted it on the Hood Scope Checker alongside my 36X Valdada. By aiming both scopes at a given point on the paper and firing several shots, one can determine if either of the scopes’ POA is moving. I don’t have a “frozen” scope to use, but the Valdada has been rock solid for me during many competitions over the last eight years. Pictured below is the setup that I used to test the scopes.
It is a pleasure to test a scope of this quality. Everything works as advertised and there are no unpleasant surprises. Many premium scopes fail the POA test outlined above. If a scope holds point of aim, has repeatable crisp adjustments, and sharp clear images, what more could a person ask?
Summary: A Quality Optic with Great Performance
Although I am still evaluating this scope, there are some definite conclusions that I have reached. This scope is for the person who will not compromise his demands for quality, regardless of price. This is not the most expensive large scope on the market at $2799.00, but it represents an extremely high-quality product for those willing to pay a premium for a premium product.
Are there things that I do not like about this scope? Yes, the primary one is the weight (31.4 ounces). This is not a problem for those shooting long range with 17- or 22-pound limits, but the weight is a consideration for those shooting short range benchrest varmint classes (10.5 or 13.5 pounds). Also, I would appreciate screw-on lens caps rather that the large bulky cover. I know that both of these are minor things and do not reflect the quality of the instrument.
If I had to offer any type of critique, it would be for a lower price and lighter weight. I cannot fault the price or weight too much however because quality costs and the scope has large objective lens and a sturdy tube. All in all, I can recommend this scope without reservation to all who want the best and have the ability to pay for same. — James Mock
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When shopping for a new riflescope or spotting scope it’s easy to get confused by all the technical terminology. Do you wish you had a better way to compare scopes — beyond just size, weight, and price? Well Swarovski Optik can help. The Swarovski Hunting Blog offers a helpful guide to technical terms used when comparing scope specifications. Here are some important definitions, expressed in layman’s language:
Objective Lens Diameter
The objective lens diameter determines the size of the optical system’s entrance pupil. The bigger the objective lens diameter, the more light the system can capture. However, the size of the objective lens does not determine the size of the field of view.
Exit Pupil
The size of the Exit Pupil is determined by the objective lens diameter and the magnification. If you look at the eyepiece from a distance of around 30 cm (11.8 in), the Exit Pupil appears as a bright disc.
For calculating the Exit Pupil the formula is:
Exit Pupil = objective lens diameter ÷ magnification (expressed in power number).
The larger the Exit Pupil, the more light will reach the eye.
Field of View
The Field of View is the size of the circular section of the area which can be observed when you look through a long-range optical device. In the case of rifle scopes, it is specified at a distance of 100 meters or 100 yards. For example, 42.5 m at 100 m or 127.5″ at 100 yards. As an alternative, the Field of View can also be stated in degrees (e.g. 6.6°).
NOTE: The technically-feasible size for the Field of View is essentially determined by the magnification. The higher the magnification the smaller the Field of View.
Twilight Factor
The Twilight Factor defines the optical system’s performance in poor light. The statement “the greater the twilight factor, the better the suitability for twilight” only applies if the exit pupil is larger than or at least as big as the eye’s pupil. The pupil in the human eye can only open to around 8 mm. As we get older, our eyes become less flexible, which limits our ability to see things in twilight or at night. Therefore [an optic’s] exit pupil cannot always be fully utilized.
For calculating the Twilight Factor the formula is:
Twilight Factor = root of ( magnification x objective lens diameter ).
NOTE: Spotting scopes have extremely high twilight factors because of their high magnification and large objective lens diameter. But [when used at high magnification] their small exit pupil can make them [somewhat difficult] to use in twilight.
While attending the CA Long Range Championship a few seasons back, we had the opportunity to test the performance of a high-magnification (63X) spotting scope in near-ideal conditions (maybe the best I’ve ever witnessed). On the event’s last day we arrived at 5:45 am, literally as the sun was cresting the horizon. I quickly deployed our Pentax PF-100ED spotting scope, fitted with a Pentax SMC-XW 10mm fixed-power eyepiece. When used with the 100mm Pentax scope, this 10mm eyepiece yields 63X magnification. Befitting its $359.00 price, this eyepiece is extremely clear and sharp.
Then I invited 3 or 4 shooters to look through the scope. One younger guy, with good eyes, said immediately: “Yeah, I can see the holes — right there at 4 o’clock and seven o’clock. Wow.” Some older guys, who were wearing glasses, could not see the holes at all, no matter what we did to the scope’s main focus and diopter adjustment.
Chromatic Aberration Revealed
When shopping for a new riflescope or spotting scope it’s easy to get confused by all the technical terminology. Do you wish you had a better way to compare scopes — beyond just size, weight, and price? Well 
