How to Zero a Holosun 507c: A Hunter’s Guide to Precision

Greetings fellow hunters, night vision enthusiasts, and precision shooting aficionados! Joel Mccartan here, ready to share my expertise on a topic that I frequently get asked about – how to properly zero the ever-popular Holosun 507c red dot sight. As an avid hunter and passionate gear guru, I’ve spent countless hours in the field and on the range honing my skills and testing various optics setups. Today, I’ll guide you through the process of zeroing your Holosun 507c step-by-step, ensuring that you achieve the level of accuracy and precision your hunting and shooting pursuits demand.

First, let’s discuss why the Holosun 507c has become such a sought-after choice among hunters and shooters alike. This compact optic is packed with advanced features that set it apart from the competition. The 507c boasts Holosun’s innovative ShakeAwake technology, which automatically powers down the sight when not in use, conserving battery life for when you need it most. Additionally, the solar failsafe system ensures that your sight remains operational even if the battery runs out, providing an extra layer of reliability in the field.

The 507c’s versatile design allows it to be mounted on both pistols and rifles, making it a flexible option for a wide range of shooting applications. With multiple reticle options, including a precision 2 MOA dot and a larger 32 MOA circle, the 507c adapts to your specific needs, whether you’re engaging targets at close range or making precise shots at extended distances.

However, even the most advanced optic will fail to perform if not properly zeroed. A well-zeroed sight is the foundation of accurate shooting, and taking the time to dial in your 507c will pay dividends in the field and on the range. Let’s dive into the two primary methods for zeroing your Holosun 507c: live fire and dry fire.

Live Fire Zeroing:

When time and ammunition are not a concern, live fire zeroing is my preferred method for dialing in the 507c. Here’s a step-by-step guide to the process:

1. Set up your target at 25 yards. The 507c comes factory-zeroed for this distance, making it an ideal starting point.

2. Use a dedicated zeroing target with clearly marked MOA (Minute of Angle) grid lines. This will greatly simplify the adjustment process.

3. Fire a 5-shot group, focusing on proper shooting fundamentals such as sight alignment, trigger control, and breath control.

4. Carefully assess the shot group, measuring the distance from the center of the group to the bullseye.

5. Make the necessary adjustments using the 507c’s elevation and windage turrets. Each click represents a 1 MOA adjustment, which translates to approximately 1/4 inch at 25 yards.

6. Repeat the process, firing additional 5-shot groups and making adjustments until you achieve a satisfactory zero. I typically conduct this process 3-5 times to ensure a precise and consistent zero.

Pro Tip: If your initial shots are significantly off-target, begin the zeroing process at a closer distance, such as 10 yards, to get on paper. Once you’ve achieved a rough zero, move back to 25 yards for fine-tuning.

Dry Fire Zeroing:

In situations where live fire zeroing is not practical or when you want to conserve ammunition, there are two effective dry fire methods for obtaining a rough zero on your 507c:

Laser Boresighting: This is my go-to method for quickly getting the 507c in the ballpark. Insert a laser boresight into the chamber of your firearm, align the Holosun’s dot with the laser at your desired zeroing distance, and make the necessary adjustments. While not as precise as live fire zeroing, this method will get you close enough to make any final adjustments with minimal ammunition expenditure.

Co-Witness with Iron Sights: If your pistol or rifle is equipped with backup iron sights, you can align the 507c’s dot with your front sight post. Although not as accurate as other methods, this approach will provide a serviceable zero that can be refined further through live fire.

Fine-Tuning Your Zero:

Once you’ve achieved a rough zero using either live fire or dry fire methods, it’s time to fine-tune your 507c for optimal performance. Here’s where the Holosun’s user-friendly design shines:

1. Utilize the included adjustment tool. The flat end is designed for making precise windage and elevation adjustments, while the Torx end is perfect for tightening or loosening the mounting screws.

2. Understand the click values. Each click of the adjustment turrets moves the point of impact by 1 MOA. This translates to 1 inch at 100 yards, 1/2 inch at 50 yards, and 1/4 inch at 25 yards.

3. Make small, incremental adjustments. Avoid the temptation to make significant changes based on a single shot or group. Slow and steady adjustments will lead to a more precise and reliable zero.

4. Be mindful of the 507c’s adjustment range. The sight has a maximum adjustment range of ±50 MOA. If you find yourself maxing out the turrets, it’s likely that there is an issue with your mounting setup that needs to be addressed.

Putting Your Zeroed 507c to the Test:

With your Holosun 507c zeroed to perfection, it’s time to put it through its paces in real-world scenarios. I recommend practicing at various distances and in different lighting conditions to familiarize yourself with the sight’s performance and capabilities. Experiment with the 507c’s multiple reticle options, using the precision 2 MOA dot for long-range shots and the larger 32 MOA circle for rapid target acquisition in low-light environments.

On a recent hog hunting trip, I had the opportunity to put my zeroed 507c to the test. As the sun dipped below the horizon, a massive boar emerged from the brush at a distance of approximately 40 yards. Thanks to my well-zeroed optic, I was able to quickly acquire the target, placing the illuminated dot on the boar’s vitals, and make a clean, ethical shot. This is the true value of a properly zeroed optic – the confidence to make accurate shots when it matters most.


Zeroing your Holosun 507c may initially seem like a daunting task, but with the right approach and a bit of patience, you’ll be able to unlock the full potential of this impressive optic. Remember, a well-zeroed sight is the cornerstone of accurate shooting, whether you’re punching paper at the range, ringing steel plates, or harvesting game in the field.

I encourage you to put the techniques and tips I’ve shared today into practice. Get out there, zero your 507c, and experience the satisfaction that comes with knowing your optic is dialed in and ready for whatever challenges lie ahead. And remember, if you’re looking to take your night hunting to the next level, be sure to check out our selection of cutting-edge night vision gear here at nightvisiongears. We’ve got everything you need to extend your hunting hours and maximize your success in the field.

As always, if you have any questions or want to share your own experiences zeroing the Holosun 507c, don’t hesitate to reach out. I’m always eager to learn from fellow hunters and shooters, and I’m here to help in any way I can.

Until next time, shoot straight, stay safe, and never stop pursuing the perfect shot!

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