MILDOT MASTER LONG RANGE SHOOTING CALCULATOR

MILDOT MASTER

MILDOT MASTER

MILDOT MASTER – The mil-dot reticle is in increasingly widespread use among long-range rifle shooters as a means of estimating the range to the target. This estimation is critical in order to correct for the varying degree of projectile drop (and/or wind drift) at different ranges and thereby enable the shooter to hit the target. With training and familiarization, an experienced marksman can accurately estimate range to target by using this type of reticle and by making the appropriate calculations. Originally fitted to telescopic sights designed for military (and later police) use, the mil-dot reticle has seen growing acceptance in the civilian sector among target shooters and hunters.

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By using a set of fixed references within the scope, the shooter can compare the size of the target, a portion of the target, or a nearby reference target to a series of precisely sized dots and spacing. By estimating the size of the target or nearby reference and noting the number of mils that equal the size of the target, the shooter can determine the range to the target by applying a formula (size of target in yards multiplied by 1000, divided by size of target in mils, equals range to target in yards), usually done with the help of a conventional hand held electronic calculator. However, there are problems associated with the use of an electronic calculator. The MILDOT MASTER is designed to eliminate these problems.

  • Problem: The necessary calculations are somewhat complex and depend upon the shooter’s ability to remember and correctly apply the formula. Solution: With the Mildot Master, you don’t have to memorize formulae, as the correct formulae are already built into the scales.
  • Problem: The size of the target is more often than not mentally estimated in inches, necessitating an additional calculation to convert the target size into a decimal equivalent of yards. ie: 18″ shoulder width. If the range is to be calculated in meters, an additional conversion from yards to meters in necessary. Solution: No conversion of estimated target size from inches into decimal equivalent of yards is necessary, as the Target Size Scale is in increments of feet and inches on the Mildot Master®.
  • Problem: Even after the shooter has gone through the range calculation procedure, the amount of bullet drop (or wind drift) applicable to that range must now be applied to the sight picture to enable a hit on the target. Either the scope must be adjusted or the sight picture “held over”, which necessitates a second series of calculations to translate the needed amount of correction into a scope adjustment or hold-over figure for that range and load. Solution: The Mildot Master makes this process extremely simple by performing range determination, sight adjustment, and hold-over calculations simultaneously. Once the range has been determined by aligning the Target Size with the measured number of mils, bullet drop/drift figures are automatically aligned with the corresponding sight adjustment/hold-over figures.
  • Problem: Aside from the possibility of errors occurring during these calculations, the time involved in such calculations can prove problematic in certain scenarios, such as military or police counter-sniping operations, timed competitive target-shooting events, or hunting situations. Solution: Speed of calculations necessary to determine range to target and required telescopic sight adjustment and/or hold-over can be significantly reduced by using the Mildot Master in lieu of a conventional hand-held electronic calculator.

The Mildot Master is an analog calculator designed along the principle of a slide rule, utilizing logarithmic and inverse logarithmic scales developed specifically for performing the following operations:

  • Rapid and simple calculation of range to target, based on a measurement of the target with a mildot reticle, by aligning the estimated target size directly opposite the mildot measurement, and then reading the range at an index mark.
  • Rapid and simple calculation of the amount of sight correction necessary to compensate for bullet drop and/or wind drift for a given range, enabling the shooter to determine either the equivalent telescopic sight adjustment (minute-of-angle, or MOA) or the equivalent hold-over (mils), by reading equivalents in both MOA and mils directly opposite the bullet drop/wind drift figure.
  • Additionally, angle of fire for uphill or downhill shots can be accurately measured, and the up/down compensation can be closely calculated to reduce the errors such shots can induce.
  • No conversion of estimated target size from inches into decimal equivalent of yards is necessary, as the Target Size Scale is in increments of feet and inches.
  • No entry of data or operations through a keypad is necessary, as the device is purely analog and only requires the alignment of figures on scales.
  • No memorization of formulae is necessary, as the correct formulae are built into the scales.
  • No complex calculations for determination of telescopic sight adjustment or hold-over at various ranges are necessary, as the scales of the device convert drop/drift figures directly into both MOA and mils.
  • No separate data sheet is necessary for bullet drop figures, as the reverse side of the device is designed to accommodate either commercially available data decals or user-produced data strips.

MILDOT MASTER

ATC Pact SRGOLD AR GOLD Trigger

Vortex Optics Strike Eagle 1-6 x 24 AR-BDC Reticle

Vortex Optics Strike Eagle 1-6 x 24 AR-BDC Reticle www.combatrifle.com

Vortex Optics Strike Eagle 1-6 x 24 AR-BDC Reticle

For a long time I have recommended Leupold and Nikon scopes, I still do. That said I’m fast becoming a Vortex Optics convert. Their products are priced for every budget and every need and often offer higher quality and value than competitively priced scopes. Then there is the unrivaled VIP Warranty

Vortex Optics VIP warranty is about you, not us. It’s about taking care of you after the sale.VIP stands for a Very Important Promise to you, our customer. We will repair or replace your Vortex product in the event it becomes damaged or defective—at no charge to you. If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. You see, it doesn’t matter how it happened, whose fault it was, or where you purchased it. You can count on the VIP Warranty for all Vortex Optics riflescopes, prism scopes, red dots, rangefinders, binoculars, spotting scopes, tripods, and monoculars.

  • Unlimited Lifetime Warranty
  • Fully transferable
  • No warranty card to fill out
  • No receipt needed to hang on to

If you ever have a problem, no matter the cause, we promise to take care of you.

 

Vortex Optics Strike Eagle 1-6 x 24 AR-BDC Reticle

Speed and versatility—that’s what 1x variable optics offer AR shooters who need to engage targets from point-blank out to extended ranges. And that’s exactly what you’re going to get with Vortex’s new Strike Eagle 1-6 x 24. Take into consideration what it costs to get into this optic, and you may find you can’t afford not to buy it.

Whether you’re burning through a 3-Gun Stage, logging some range time, or holding for hair on a coyote you’ve duped into thinking you’re lunch, the Strike Eagle is up to the task. High-quality, fully multi-coated lenses deliver a clear, crisp sight picture and optimal low-light performance. A true one-power on the low end of its 6x zoom range provides quick target acquisition in close quarters scenarios. Need to engage targets at distance? Crank it up to 6x and let it rip.

Vortex Optics Strike Eagle 1-6 x 24 AR-BDC Reticle – Optical Features

  • Fully Multi-Coated – Increases light transmission with multiple anti-reflective coatings on all air-to-glass surfaces.
  • Second Focal Plane Reticle – Scale of reticle maintains the same ideally-sized appearance. Listed reticle subtensions used for estimating range, holdover and wind drift correction are accurate at the highest magnification.
  • Glass-etched Reticle – Protected between two layers of glass for optimum durability and reliability.
  • Illuminated Reticle Provides precise aiming under low-light conditions.

Vortex Optics Strike Eagle 1-6 x 24 AR-BDC Reticle – Construction Features

  • Tube Size – 30 mm diameter.
  • Single-Piece Tube – Maximizes alignment for improved accuracy and optimum visual performance, as well as ensures strength and waterproofness.
  • Aircraft-Grade Aluminum – Constructed from a solid block of aircraft-grade aluminum for strength and rigidity.
  • Waterproof O-ring – seals prevent moisture, dust and debris from penetrating the riflescope for reliable performance in all environments.
  • Fogproof Nitrogen – gas purging prevents internal fogging over a wide range of temperatures.
  • Shockproof – Rugged construction withstands recoil and impact.
  • Hard Anodized Finish – Highly durable low-glare matte finish helps camouflage the shooter’s position.
  • Capped Reset Turrets – Allow re-indexing of the turret to zero after sighting in the riflescope. Caps provide external protection for turret.

Convenience Features – Fast Focus Eyepiece Allows quick and easy reticle focusing.

Vortex Optics Strike Eagle 1-6 x 24 AR-BDC Reticle – Specifications

  • Magnification 1-6 x
  • Objective Lens Diameter 24 mm
  • Eye Relief 3.5 inches
  • Field of View 116.5-19.2 feet/100 yards
  • Tube Size 30 mm
  • Turret Style Capped
  • Adjustment Graduation 1/2 MOA
  • Travel per Rotation 44 MOA
  • Max Elevation Adjustment 140 MOA
  • Max Windage Adjustment 140 MOA
  • Parallax Setting 100 yards
  • Length 10.5 inches
  • Weight 17.6 ounces

Downloads

 

Videos

Vortex Optics Strike Eagle 1-6 x 24 AR-BDC Reticle

AR-BDC Reticle

Vortex Optics AR-BDC Reticle Subtensions www.combatrifle.com

Vortex Optics AR-BDC Reticle Subtensions

AR-BDC Reticle – The illuminated, glass-etched AR-BDC reticle subtends with popular 5.56 mm cartridges, and the centered halo promotes fast target aquisition.

from Brownells

Speed and versatility—that’s what 1x variable optics offer AR shooters who need to engage targets from point-blank out to extended ranges. And that’s exactly what you’re going to get with Vortex’s new Strike Eagle 1-6 x 24. Take into consideration what it costs to get into this optic, and you may find you can’t afford not to buy it.

Whether you’re burning through a 3-Gun Stage, logging some range time, or holding for hair on a coyote you’ve duped into thinking you’re lunch, the Strike Eagle is up to the task. High-quality, fully multi-coated lenses deliver a clear, crisp sight picture and optimal low-light performance. A true one-power on the low end of its 6x zoom range provides quick target acquisition in close quarters scenarios. Need to engage targets at distance? Crank it up to 6x and let it rip.

Vortex Optics Strike Eagle 1-6 x 24 AR-BDC Reticle


BOBRO Scope Mount

BOBRO Precision Optic Mount – A scope mount is a scope mount right? Not exactly. Its not until you begin to physically examine the BOBRO Precision Optic Mount you begin to understand the differences that separate the BOBRO from everyone else’s offerings.

 

The Dual Lever series of precision optics mounts features the Patented [US Patent 8,567,105] BLAC™ lever system and are engineered for larger diameter scopes. The base has an extension that allows proper eye relief, even when using a non-monolithic rail. It is designed so that the base allows the use of a folding back up iron sight (BUIS). The structure is designed for maximum strength, and utilizes larger fasteners than our standard lineup. This mount is engineered to handle heavy optics and high recoil forces. It is offered in both 0MOA and 20MOA cant.

Design Features

The Precision Optic Mount features the Patented [US Patent 8,567,105] BLAC™ lever system which was designed around the following parameters:

  • Must be compatible with any 1913 Specification Rail, to include systems that are out of specification (within reason) and this includes Weaver rails.
  • Must be completely tool and user adjustable free. It needs to be 100% self contained and mate securely to any rail without the user having to tailor the pressure/engagement position.
  • Must lock with enough pressure to positively attach any device or optical instrument to a rail without movement, static or dynamic forces not withstanding.
  • The rail must not experience any deformation due to user error. This must include synthetic (plastic/polymer/composite) rail systems.
  • Auto Index capability. The device must also index parallel to the bore. The unit must always repeat the forward shift (recoil forces direction of influence) not only to maximize zero repeatability, but to take this step of installation out of the users initial mounting sequence. Index must be redundant.
  • Unit must not shoot loose due to improper mounting or a mechanical bottoming out.
  • The system must incorporate a safety that prevents the lever from being accidentally opened. The safety must be able to be manipulated in conjunction with the lever rotation, so that only one hand is required to open it.
  • The unit will utilize constant force to ensure required pressure in all conditions. The force must be substantial to prevent any shift forward/aft left/right.
  • The pressure must be applied in a linear direction centered in the main body to prevent cocking of the mount.
  • It must be easy to manipulate by gloved or fatigued hands.
  • It must be extremely robust, and withstand shock and impact to the system housing.
  • There were others, but by listing them we would compromise our trade secrets.
  • Materials & Construction

    The Precision Optic Mount is precision CNC machined from a block of 6061 T6 aluminum and finished in hard coat type 3 mil-spec anodized black for a rock hard lasting finish.

    • 6061 T6 Aluminum
    • Type 3 Hard coat black anodizing
    • Weighs only 9.50 ozs!
    • Made in the USA!

    Specifications:

    The Precision Optic Mount has the following specifications:

    • Height: 1.5″ from top of rail to scope center-line
    • Weight: 9.50 ozs.
    • Ring Spacing: 2.975 inside to inside
    • Ring Width: is 0.990
    • Front Cantilever: 2.00″ long
BOBRO Precision Optic Mount - www.combatrifle.com

BOBRO Precision Optic Mount – Right Side

BOBRO Precision Optic Mount - www.combatrifle.com

BOBRO Precision Optic Mount Top

BOBRO Precision Optic Mount - www.combatrifle.com

BOBRO Precision Optic Mount Left Side View

BOBRO Precision Optic Mount - www.combatrifle.com

BOBRO Precision Optic Mount Top View Disassembled

BOBRO Precision Optic Mount - www.combatrifle.com

BOBRO Precision Optic Mount Bottom View

BOBRO Precision Optic Mount - www.combatrifle.com

BOBRO Precision Optic Mount Top

BOBRO Precision Optic Mount - www.combatrifle.com

BOBRO Precision Optic Mount Side

 

BOBRO Precision Optic Mount