October 11th, 2017

Vortex Flip-Up Scope Caps with Dope Disk

Vortex Scope Cap Flip Flip-up cover Dope Disk Ballistics Card

We’ve used these Defender Flip Caps on varmint rifles and they work great — and having your ballistics dope inside the flip cap is brilliant. The E-10 eyepiece Flip Cap is “stretchable” to fit eyepieces with outer diameters of 40-46 mm (1.57-1.81″)*. The caps for the front objective come in a variety of sizes from 24mm to 56mm. The spring-loaded E10 eyepiece cap offers three stop positions: The first is the vertical position, which will put your optional dope disk “front and center” for easy viewing. The second position is 45° back from vertical and the third is at 90° from vertical, laying flat back.

Introduced last year, the Vortex Defender Flip Cap is already a “best seller” on Amazon.com. Most purchasers have been quite happy with this product, which have proven very durable. Here is a typical review: “I’ve used scope caps from different manufacturers but these are by far the best! The fact that they can be stretched to fit eyepieces of varying size puts them over the top. Besides the fact that they are indestructible.”

Vortex Scope Cap Flip Flip-up cover Dope Disk Ballistics Card

Make Your Own Custom Dope Disk
Vortex Dope Disks cost $9.99. These are truly “custom” — you enter your own ballistics data on the Vortex Website to create an insert that fits inside a Vortex E-10 eyepiece flip cap. Disks are made from a durable plastic, custom laser-engraved with user-specific ballistics data. Choose single-column, two-column, or reticle-style display (shown above), and select the font size (big fonts help older eyes). CLICK HERE for Dope Disk Data Entry Page.

This video explains how to create a Dope Disk:

*Note: The E-10 eyepiece cap sleeve may cover the in/out eyepiece focus adjustment on some scopes, so you should set that adjustment before installing the cap.

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January 19th, 2009

SHOT Show Report: March 36-55 BR Scope + Revolutionary 1:10 Ratio Zooms

Kelbly’s rolled out a remarkable new March benchrest scope at SHOT 2009: a completely new 36-55x52mm zoom, quite unlike anything on the market. Produced by Japan’s DEON Optical, the design was inspired, in part, by suggestions from ace shooter Lou Murdica. Lou looked at the current benchrest disciplines, from point-blank (100/200) BR, all the way to the 1000-yard game. He found that most benchresters (both short-range and long-range) rarely dialed their scopes below 30-power, and most wanted more magnification than their current scopes offered, for times when the conditions were good. Lou asked DEON’s designers if they could build a high-quality BR scope with about a two-times zoom ratio. But he also wanted the reticle to be super-stable, so it didn’t move at all when adjusting the magnification.

Six months later, DEON (March) sent Lou a prototype. It was very different that other scopes on the market because the zoom function is done in the eyepiece — similar to a spotting scope. In fact DEON dubbed the new scoped the “EP” zoom, with the “EP” referring to “eye piece”. Lou has tested the new March 36-55X and he says “The cross-hair absolutely doesn’t move when you zoom because everything is taking place behind the cross-hairs at the eyepiece. For a benchrest shooter this is a BIG deal — if you don’t like the mirage, you can change from 55 power to 36 power in the middle of your group, and know that point of impact will not change.” The other great feature of the scope is the near-constant eye relief — it changes only about 1/2″ from 36 power to full 55X magnification. Lou says, “you can zoom through the entire range and barely need to move your head at all.” Lou has worked with all the March BR scopes, from the early 40X through the lastest zooms. He feels that the new 36-55 may be the best yet for short-, medium-, and long-range benchrest shooters. As Lou explains: “It takes care of 100 to 1000-yard shooting with one scope. What more would you ever need?”

Click Here to download March 36-55×52 Spec Sheet.

Revolutionary March 1:10 Ratio Zooms Amaze Optics Experts
March pulled off a major coup at SHOT Show. The new March 1-10x35mm and 2.5-25x42mm zooms were the talk of the Show. This is the first time ANY major manufacturer has been able to achieve a 10 times zoom ratio. March’s booth was mobbed as engineers from other optics companies came to see how March “achieved the impossible”. And the optics guys had to fight past a line-up of military personnel — from the USA, Canada, Israel, and Germany. Lou Murdica was there and he reports: “Once word of these scopes hit the show’s Tactical area, March had more military and law enforcement people from the U.S. and other countries than you could imagine.”

March 1-10x35mm tactical scopeApparently, the U.S. Military has been asking domestic manufacturers to perfect a 1-10X zoom for years, and the response was always: “It can’t be done.” Well, starting from a blank page, the engineers at Japans’ DEON Optical Design Corp. (makers of the March), figured it out. For the military this is a HUGE technical breakthrough because a 1-power optic is ideal for close quarters combat (or house-clearing) while 10-power is a good setting for long-range sniper work. The two 1:10 ratio zooms both feature 1/4 MOA clicks, illuminated plex or MTR2 reticles, 30mm tubes, and a huge elevation range: 180 MOA for the 1-10×35 and 100 MOA for the 2.5-25×42. Both these scopes are slated for June 2009 deliveries. The 1-10×35 scope is expected to sell for $1500.00 while the 2.4-25×42 will cost about $2400.00.

We are told that David Tubb will be working on adapting a specialized long-range reticle for the 2.5-25×42. Representatives of the U.S. Navy SEALs showed great interest in the 2.5-25x42mm March. In addition to the two smaller tactical scopes, March displayed 5-32x52mm and 10-60x52mm tactical scopes. These feature 1/8-MOA clicks and an MTR1 reticle.

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