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Diamondback Tactical 4-12x40

VMR-1 | 1-Inch Tube

Diamondback Tactical 4-12x40 Click to Enlarge
SKU: DBK-10025
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MSRP: $399.99
*Prices in US Dollars
Reviews:
Diamondback Tactical 4-12x40 is rated 4.8 out of 5 by 18.
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Diamondback® Tactical 4-12x40 Riflescope

Exposed tactical turrets built for dialing elevation and windage allow quick and precise bullet drop and wind drift compensation at extended ranges. When we say precise—we mean it. These turrets track better than any Bloodhound and reliably return to zero every time. A zero-reset feature lets you re-index the zero reference marks on both turrets after sight in, while fiber optic rotation indicators integrated into the turrets provide a visual cue of your turret’s position.

Dual use for Shooting Tactical / Hunting




Magnification4-12 x
Objective Lens Diameter40 mm
Eye Relief3.9 inches
Field of View23.6-7.9 feet/100 yards
Tube Size1 Inch
Turret StyleTactical
Adjustment Graduation1/4 MOA
Travel per Rotation12 MOA
Max Elevation Adjustment70 MOA
Max Windage Adjustment70 MOA
Parallax Setting100 yards
Length14.2 inches
Weight16.2 ounces
Product Manual (PDF)Download
Product Manual 2 (PDF)Download
Included in the Box
  • Lens Covers
  • Lens Cloth
  • Tools

Optical Features

XD™ Lens Elements Extra-low dispersion (XD) glass increases resolution and color fidelity, resulting in crisp, sharp images.
XR™ Fully Multi-Coated Proprietary coatings increase 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.

Construction Features

Tube Size 1-inch diameter.
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.
Precision-Glide Erector System Uses premium components in the zoom lens mechanism to ensure smooth magnification changes under the harshest conditions.
Exposed Tactical Turrets The Diamondback® Tactical scopes feature tactical windage and elevation turrets with Zero Reset making adjustments back to zero easy and quick.

Internal Mechanism Design Features

Precision-Glide Erector System Uses premium components in the zoom lens mechanism to ensure smooth magnification changes under the harshest conditions.

Convenience Features

Fast Focus Eyepiece Allows quick and easy reticle focusing.
Fiber Optic Radius Bar The patented fiber optic Radius Bar visually assists tracking turret rotations.
Magnification Rib The raised rib on the magnification ring facilitates fast magnification changes in the heat of action.
Magnification4-12 x
Objective Lens Diameter40 mm
Eye Relief3.9 inches
Field of View23.6-7.9 feet/100 yards
Tube Size1 Inch
Turret StyleTactical
Adjustment Graduation1/4 MOA
Travel per Rotation12 MOA
Max Elevation Adjustment70 MOA
Max Windage Adjustment70 MOA
Parallax Setting100 yards
Length14.2 inches
Weight16.2 ounces
Product Manual (PDF)Download
Product Manual 2 (PDF)Download

Diamondback Tactical 4-12x40 Dimensions

Lengths
L1 L2 L3 L4 L5 L6
14.2 1.9 2.1 5.3 5.3 3.6
Heights
H1 H2
1.86 1.58

Dimensions measured in inches.

VMR-1 Reticle

Designed to maximize long distance shooting and ranging abilities, the VMR-1 MOA reticle can be used to effectively determine ranges, holdovers, windage corrections and moving target leads.

Subtension detail for the Diamondback Tactical 4-12x40 with VMR-1 reticle.>

Note
Read the VMR-1 Reticle manual for details on using the reticle for bullet drop compensation and wind drift compensation and ranging.

Rated 5 out of 5 by from Excellent Bought this as a cheap stop gap before I bought another Viper PST. I honestly do not think I would change now. Very sleek tube with no fuss. The zero-reset turrets are first class. I regularly shoot at 100m to test my new loads but dialling back up to 750 metres for my regular loads never fails. A 6 - 18 x 50 (still with the same turrets) would be welcome.. I prefer the DB T to the Viper PST now because of it's simplicity.
Date published: 2017-07-10
Rated 5 out of 5 by from Great scope !!! I currently own a PST for my long range gun and it became too heavy to hunt with. So I purchased a Savage 10 in 260 rem for my new hunting rifle. I wanted what i have come to love in my PST 6x24x50 but in a smaller package. The Diamondback Tactical is a perfect fit. I mainly wanted turrets so that I wouldn't have to bother with removing the caps when out in the field. Turret adjustments are solid, easy to zero, and very easy to read. First time out after the scope was zeroed i wanted to see how it would do. I set up and shot 500 yards and was on target in a few shots... moved out to 800 yards and got hitting consistently. Now for the test.. went from 800 to 500 and back to 800.. shot 3 rounds at 500 and adjusted back to 800 for 3 more. All 6 shots hit just as they did before. Was very satisfied with just how well the scope tracked between different yardages. Lens clarity is as clear as my PST. Great job with this scope Vortex !!!
Date published: 2017-07-29
Rated 1 out of 5 by from Diamondback disappointed Disappointed in the diamondback tactical. First off I like many of the Vortex products with exception and this is one exception. The turrets and mag ring feel cheap. The clicks are hard to discribe, Almost like plastic gears. Tracking adjustment is faulty. Can be several clicks before reticle moves at all, somerhing is seriously wrong, and Defeats the whole purpose of exposeded turrets. Not having adjustment for parallax on a scope designed to be dialed for distance ( when parallax becomes an issue ) just seems silly. The glass is ok for the price but the other shortcomings especially are shamefull. Not sure what the idea was behind this model, But this one is a fail.
Date published: 2018-01-08
Rated 5 out of 5 by from Great Turret Scope I was building a AR for coyote hunting, and decided to see what I could "get away with" in terms of scope/price. I came across this scope after watching vortex's ruger american rifle video with the 1000 yard shot. This thing has all the features of any high end scope, and functions flawlessly. Makes 600 yard shots with my .223 easy. Turrets are dead on using Vortex's LRBC. Smooth turret adjustments, super easy to zero, clear glass. Would buy again without hesitation. GREAT for the price.
Date published: 2017-11-28
Rated 5 out of 5 by from Well worth the wait I ordered it as soon as I saw it. It was on back order, but well worth the wait. I mounted it to a Remington 783 in 308 to replace the cruddy factory scope. The rifle was zeroed in with about 12 rounds at 50yds. Moved it out to 100 w/ no issues. Adjustments and reseting zero is easy. Switched ammo and had to make big adjustments, but again it was quick and easy. Glass is clear and pristine. I kinda want another one for another rifle. No regrets here. Reticle appears to be very accurate as far as ranging.
Date published: 2017-06-15
Rated 5 out of 5 by from Great lightweight scope I bought this scope for my son to borrow as he bought a Ruger Precision Rifle and didnt have much cash left over after his purchase. Instead of letting him buy a cheap scope I picked up a Diamondback Tactical 4-12x40 that he could borrow until I get around to buying a custom 22-250 barrel for my TC ProHunter. This was not my first Vortex purchase as we already have 3 DiamondBacks and 2 Vipers. I was initially impressed with the light weight and decent reticle. Adjustments felt good in the store and proved to be consistent at the range. The glass is quite good even before factoring in the price, and there is no noticeable shift in point of impact from 4 power up until 12 power. The exposed turrets are clearly marked and easy to move but firm enough to stay put. We haven't had a chance to try it in low light yet but if it is like our other DiamondBacks I'm sure it will be just fine. All in all I'm just as impressed with this scope as I've been with the others. Keep up the great work and happy hunting!
Date published: 2017-09-25
Rated 5 out of 5 by from This scope tracks PERFECTLY!! For being such an inexpensive scope, it tracks perfectly. I have dialed in at 1000 yards from 100 yards and shots were on point. This is a nice bonus for a scope at this price point, If Vortex would make the Diamondback Tactical in higher magnification I would be buying more.
Date published: 2017-07-28
Rated 5 out of 5 by from Diamondback Tactical 4-12x40 Review. Not too long ago I purchased a Diamondback Tactical 4-12x40 optic. I shoot out to a thousand yards and love dialing in my solutions. When I read the description for this piece of glass I had to have one. I purchased it to mount on a Ruger American Predator in 6.5 Creed I use as my pack gun. As with all other Vortex products the finish and look of it was spot on. The windage and elevation knobs are sweet with good positive purchase and seated feeling when rotating. I really appreciate being able to lift the elevation knob to allow me to rotate the zero to the appropriate setting. This scope has performed flawlessly. Nevermind those folks out there who complain about the missing paralax adjustment. I have shot this scope/firearm combo out to 500 yards and it performs as promised and as always is backed by Voretx's no questions asked, grunt-proof guarantee. Makes it perfect for my back gun. Thanks again VORTEX for having your fingers on the pulse of the industry. SEMPER VORTEX. ha ha Joe Hendrix Redding, California
Date published: 2017-08-07
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Looking to put diamondback tactical 4-12x40 on Savage Axis, 6.5 Creedmoor. A project gun with anend goal of 1000 yards. Realistically it will get used to target shoot and occasionally hunt at 3-500 yards. What mount and rings are recommended?

Asked by: JTB3
I recommend a 1 piece picatinny rail from www.egwguns.com and a set of our medium height 1 inch Pro Rings for your setup.
Answered by: Mike at Vortex Optics
Date published: 2018-01-04

I have a Remington 300 winmag and would like to use this scope on it. This will mostly just be bench shooting. Will this handle the recoil of that firearm and what rings do you recommend. This is the Police tactical version that has a picatinny rail on it

Asked by: viper
Yes, the Diamondback Tactical will handle the recoil of your .300 Win Mag. I recommend a set of our 1 inch Pro Rings in medium height for your setup.
Answered by: Mike at Vortex Optics
Date published: 2018-01-11

Do you make a throw that will fit the Diamondback Tactical? If not, what is the diameter of the magnification ring in x.xxx"? Thank you.

Asked by: TadCo
We do not have a throw lever that fits the Diamondback Tactical, however you can contact MK Machining for one. The magnification ring is 42 mm.
Answered by: Mike at Vortex Optics
Date published: 2018-01-02

I’m new to the long range riflescope game and just purchased your diamondback tactical and I’m having a hard time understand how to set permanent zero to where I can dial in from that point is there any videos that can assist me with this ?

Asked by: Cory91
Give us a call at 800-426-0048 ext 5 and we can walk you through the process.
Answered by: Mike at Vortex Optics
Date published: 2017-12-26

Which rings to you recommend to mount your Diamondback Tactical 4-12 X 40 scope on a Savage 10T-SR (24" barrel 6.5mm Creedmore variant)

Asked by: bj0067
I recommend our 1" Precision Matched Rings for your setup.
Answered by: Mike at Vortex Optics
Date published: 2017-12-18

I have a Remington 700 tactical aac-sd chamber in 308, what kind and what size rings do i need? (Low,med,high)

Asked by: Cardenas26
I would go with a 1 piece picatinny rail from www.egwguns.com and a set of our 1 inch low height Pro Rings or our 1" Precision Matched Rings for your setup.
Answered by: Mike at Vortex Optics
Date published: 2017-12-18

Are your 1in pro rings VPR-1L?

Asked by: Jaragon
Yes, the VPR-1L would be the 1" Pro Rings in low height.
Answered by: Mike at Vortex Optics
Date published: 2017-12-11

Which specific mount(s) would you suggest using to mount this on a flat top continuous rail, adjustable stock, budget AR10? What would be a high, mid, and low end option to mount? Trying to get all my options on the table and make a decision.

Asked by: JohnnyGent
Our cantilever mounts would be the best option for you, we have our Sport Cantilever 1 inch Mount and Pro Extended Cantilever Mount.
Answered by: Mike at Vortex Optics
Date published: 2017-11-29
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Rated 5 out of 5 by from Well worth the wait I ordered it as soon as I saw it. It was on back order, but well worth the wait. I mounted it to a Remington 783 in 308 to replace the cruddy factory scope. The rifle was zeroed in with about 12 rounds at 50yds. Moved it out to 100 w/ no issues. Adjustments and reseting zero is easy. Switched ammo and had to make big adjustments, but again it was quick and easy. Glass is clear and pristine. I kinda want another one for another rifle. No regrets here. Reticle appears to be very accurate as far as ranging.
Date published: 2017-06-07
Rated 5 out of 5 by from Great Scope, Unbelievable Warranty!! I have owned this scope for about 3 years now, and it has performed flawlessly, I am using it on a rifled slug gun and it is very consistent and holds up to brutal kick from a 3 1/2 magmum slug. I will be getting another one soon for my 7mm Mag for my up coming Elk hunt this year.
Date published: 2017-06-07
Rated 5 out of 5 by from Great Scope!!! I put this scope on my Savage 10FCP-SR in 6.5 Creedmoor. This scope is bright and clear and its clarity and precision will compare to scopes costing twice as much or more. The turrets are precise and have positive clicks. I'm very pleased.
Date published: 2017-06-07
Rated 5 out of 5 by from 3x12 Tactical Scope Just arrived, been back ordered for almost two months. Very clear scope, adjustments sharp clicks. Great scope. I'm sold on the Vortex products.
Date published: 2017-06-07
Rated 5 out of 5 by from Excellent scopes, I'd buy it now Hunting, great for deer,varmints, elk.
Date published: 2017-06-07
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