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Best Scope For 6.5 Grendel – Our Top 5 Optics Choices

When you think of a rifle that uses the 6.5 Grendel, you are likely to be looking at the AR-15. The reason for that is simple; the 6.5x39mm cartridge is a low-recoil, high-accuracy round that is specifically for the AR-15. Of course, the AR-15 is not a standalone rifle in terms of manufacturers. However, we will not be getting into which is best between Alexander Arms, Radical Firearms, or Brenton. In this article, we will be looking at, which is the best scope for the 6.5 Grendel, no matter which rifle you use it with.

The name: 6.5 Grendel began as a trademark of Alexander Arms, so if you want a quick idea of which rifle this may be better in, that may be the one you are looking for. However, it is no longer a trademark of theirs, as it became a SAAMI standardized ammo.

Best Scope For 6.5 Grendel

Unlike some of the other articles that we have written, this ammo is relatively new in terms of design date. Although the parent cartridge (.220 Russian) is older (designed in the 1950s), the 6.5 Grendel development began in the early 2000s and became available in 2003.

The initial design parameters were simple, create a cartridge suitable for STANAG/NATO magazines, with an effective range of 200-800 yards. Not only that, but it also had to surpass the performance of the 5.56 NATO/.223 Rem.

Range And Performance

Of course, as with all of the articles that we write, the primary consideration that you need to take into account is the range of the rifle or ammo. As we have seen, the initial design had to surpass that of the 5.56 NATO. The primary question, though, is how accurate and what range does this round have? Well, first of all, the design specs state that this ammo has a better armor penetration than even the 7.62 round at 1,000 meters. Therefore, we certainly know that it is capable of that distance. If you would like to look at some specific long-range scopes, please see this article here.

However, before you do that, let’s have a look through what the best scopes are for the 6.5 Grendel.

There are four main types of 6.5 Grendel, and they all have different weights and velocities. So, first of all, let’s have a look at those, so you can better decide what scope you want:

Bullet Velocity From A 24-inch barrel:

Ammo Bullet Mass (gr) Muzzle Velocity (ft/s) 1,000 Meter Velocity (ft/s)
Lapua Scenar 108 2,700 1,166
Lapua Scenar 123 2,620 1,222
Lapua FMJBT 144 2,450 1,213

As you can see, there is a small difference between the ammo, but it is only slight. However, it could change the range slightly. For this article, we will focus on an average 1,000 yards and below, as if you are hunting at over that distance, you may need a different scope.

You can also check out our guide on prism or reflex sights for M&P 15-22.

The 5 Best Scopes For 6.5 Grendel

Our top recommendations are:

1. Primary Arms Classic Series 4-16x44mm SFP
2. Nikon ProStaff 3-9x50mm (BDC)
3. Vortex Optics Crossfire II 3-9x40mm BDC
4. Nikon ProStaff P5 2.5-10x42mm
5. ATN X-Sight II HD 5-20

1. Primary Arms Classic Series 4-16×44 SFP Primary Arms Classic Series 4-16x44mm SFP Rifle Scope - Illuminated MIL-DOT

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Primary Arms are in the prime position yet again. While we have not chosen a higher magnification for this, the 4-16x is plenty enough for the 6.5 Grendel. You may ask yourself why, as you have ammo that is effective well over the 100-yard mark. Well, I would like to think that you get a little closer to your target before taking such a shot. Furthermore, the only other time that you would need anything more than 16x magnification is for small game. Let’s be clear; this ammo is not for small game hunting; you will cause huge problems.

However, the 16x is enough for you to test the range if you are sport shooting or testing the rifle and ammo.

So, what makes this one of the better scopes for the 6.5? If you are hunting deer, you will want to be out and about before daylight. Therefore, the illuminated mil-dot reticle with 12 brightness settings is perfect for dusk or dawn firing.  It also has a pretty large 44mm objective lens to allow maximum light into it, for better shots while the sun is down.

The easy to adjust, positive feedback turrets will allow you to adjust for bullet drop and windage without taking your eye off the target.

Pros

  • Large objective lens.
  • Adjustable brightness illuminated reticle.
  • Easy to adjust for elevation, windage, and parallax while aiming.
  • Waterproof and fog-proof.
  • Shockproof.
  • Crisp optics.

Cons

  • Lens caps leave a little to be desired.

Final Thoughts

The SFP is undoubtedly one of the better scopes for the 6.5 Grendel, providing you are not using it at super close ranges. The 12 brightness settings is a real plus for duck and dawn shooting, and it uses a standard CR2032 battery so that you can take a few with you with ease.

2. Nikon ProStaff (BDC) 3-9×50 BDC Reticle Nikon ProStaff 3-9 x 50 Black Matte Riflescope (BDC)

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I think that Nikon owns a spot on every post that ew have on this website. That is for a good reason, too, they earn it. While the ProStaff has a lower magnification than that of the SFP above, it does have a broader objective lens (50mm), so it may be even better than that for dusk and dawn hunting. Not to mention that the scope has fully coated lenses, and so it transmits up to 98% of the light that is available. Therefore, you will have a constant, crisp, and clear vision.

While the ProStaff doesn’t have an illuminated reticle, the objective lens size and the Nikkon optics makes up for everything other than night shooting. This scope also has zero-reset turrets, which are spring-loaded for precise adjustments. As always, Nikon produces very high-quality scopes, and this is no exception.

Pros

  • Nikon quality optics
  • Lifetime warranty
  • Large objective lens
  • Easy to adjust
  • Waterproof and fog-proof.
  • Shockproof.
  • Crisp optics.

Cons

  • Requires high scope rings

Final Thoughts

There is not a lot to say, if you do not want illuminated reticles, this is the one for you. Nikon quality optics with a lifetime warranty.

3. Vortex Optics Crossfire II Dead-Hold BDC 3-9×40 Vortex Optics Crossfire II Dead Hold BDC Reticle Riflescope, 3-9x40, Black (CF2-31007)

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If you are looking for something that has a shorter range than the other scopes in this article, then the Crossfire II is probably the right product for you. This scope has the same magnification as the Prostaff, but that is a personal choice between the two. One of the most significant differences is that the Crossfire has a 40mm objective lens. That means that it may be better than the Nikon in bright daylight, but again, it is all down to personal choice.

You are sure to be able to stay on target at 700 yards with this scope. The tube is aircraft-grade aluminum, and it is nitrogen purged with O-ring seals. Therefore, it is fog proof, waterproof, and shock-resistant. The adjustments are also positive click, so easy to adjust on the fly.

Pros

  • Excellent value for money
  • Super clear optics
  • Lightweight
  • East to mount
  • Shock and weatherproof

Cons

  • Not for night use
  • No sunshade or caps

Final Thoughts

If you are looking for a great but inexpensive scope for daytime use, then this is undoubtedly a great contender. Yes, there may be better scopes in this article, but you will be paying more for them. If you know when you are going to use it, and that is in the day, then you are on to a winner with the Crossfire II.

4. Nikon ProStaff P5 2.5-10×42 Matte BDCPROSTAFF P5 2.5-10x42 Matte BDC

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Nikon has introduced another new line of riflescopes, the P5 family. They have 1-inch main tubes. As you can see, this scope has a little more magnification range than the Vortex above, so it may be a bit better for both short distance, and long-distance range shooting. This scope comes fully equipped with fully multi-coated optics to increase light delivery and to minimize the glare from the sun if you are out hunting in the early mornings as the sun rises.

This scope will provide you with a great field of view and increased image detail over a variety of ranges, and that is an increase from Nikons already great productions. All parts of this scope use aircraft-grade aluminum, so you know that it is going to be robust enough for any use that you may need it for. It also features a BDC reticle with see-through mil dots which gives even more accuracy for the longer ranges. Plus, of course, all of these scopes are nitrogen purged and O-ring sealed for weatherproof, but I think that is becoming more of something we expect.

Pros

  • See-through mil dots
  • Nikon quality
  • Waterproof
  • Fog proof

Cons

  • I would like to see a see through center point, but that’s all

 5. ATN X-Sight II HD 5-20 Smart Day/Night Rifle Scope

ATN X-Sight II HD 5-20 Smart Day/Night Rifle Scope w/1080p Video, Ballistic Calculator, Rangefinder, WiFi, E-Compass, GPS, Barometer, IOS & Android Apps

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If none of the above scopes is quite what you are looking for, for whatever reason, then you have landed on the best scope for 6.5 Grendel, right here. There is literally nothing that this can not do.  Before we get into it, yes, it may be more expensive than the others, but is it worth it? Of course, it is.

This scope is like a robotic tank for shooting. If you want to take all of the guesswork out of hunting, then this computerized scope is going to do you wonders. It features a 5-20x magnification, which is plenty for the 6.5. Furthermore, it has a lot of automated abilities to let you get the right shot every single time. All you have to do is sight the target; then, the scope does the rest of it for you. Let’s have a look at some of the main points that you will get with this:

  • Use for day and night
  • HD technology for crystal clear viewing
  • Ballistics calculator
  • Range finder
  • 1080p HD recording with recoil activated recording
  • WiFi streaming
  • E-compass
  • GPS
  • Barometer
  • App for Android and iOS

There is nothing that this scope cannot do. If you are looking for the epitome of scopes, then you have found it.

Pros

  • See above

Cons

  • Maybe a little too techy for some
  • Higher priced than the others

Final Thoughts

If you want to hit the target every single time, no matter what the weather, day or night, then the ATN X-Sight II is the absolute best that you will get. However, if you prefer a little more of a challenge, then perhaps one of the others is more suited to you.

Conclusion

Of course, as with all scopes, choosing the best scope for the 6.5 Grendel is a personal choice based on what you want to use it for. Also, you need to think about the level of challenge that you want. If you need to hit the target every single time, no matter what, then there is a clear winner, the ATN. However, if you are not likely to ever use the scope in the night and want something cheaper, the Crossfire II should be your primary choice. But, if you want something in the middle of the two, Nikon always takes the win for clarity.

Perhaps you would be interested in reading some of our alternative rifle scope reviews such as our guide on best scopes for Remington 700 or .30-06 Springfield.

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