Feral hogs are nocturnal. They feed from dusk to dawn, which means the most effective hunting happens at night, in complete darkness when conventional optics and even digital night vision struggle to detect animals in fields and brush.
Thermal imaging solves this problem. A thermal scope detects the heat signature of a hog against a cooler background regardless of ambient light.
No moon, no IR illuminator, no visible light of any kind required. A 200-pound hog standing in a dark field at midnight appears as a bright heat signature on the display.
Thermal scopes for hog hunting are evaluated on four specifications.
Sensor resolution determines image quality, 384×288 is the practical minimum for hunting use, while 640×480 delivers better image detail.
Lens size determines detection range a 35mm lens detects hogs at greater distance than a 25mm lens.
Magnification range affects both close-range shot acquisition and distance target identification. Refresh rate (25Hz vs 50Hz) affects how moving targets are displayed.
Verify state regulations before night hunting with any optic. Most Southern and Midwestern states allow thermal hog hunting on private land with landowner permission.
Best Thermal Scopes for Hog Hunting Comparison
| # | Image | Name | Key Features | Check Price |
|---|---|---|---|---|
| 1 |  |
Pulsar Thermion 2 XP50 | 640×480, 50mm, 2-16x, WiFi, video | Check Price |
| 2 |  |
AGM Rattler TS35-384 | 384×288, 35mm, compact, recoil rated | Check Price |
| 3 |  |
ATN Thor 4 640 2.5-10x | 640 sensor, ballistic calc, video, WiFi | Check Price |
| 4 |  |
Sector Optics S-1 19mm | Compact, lightweight, 19mm lens, hog hunting use | Check Price |
| 5 |  |
iRay RICO Mk1 640 | 640 sensor, 35mm, 4x optical, high refresh | Check Price |
#1 Pulsar Thermion 2 XP50 – Best Overall
The Pulsar Thermion 2 XP50 is the best overall thermal scope for hog hunting. The 640×480 sensor paired with a 50mm lens provides the best combination of image resolution and detection range in the hunting thermal category.
Detection range on a hog-sized target exceeds 1,800 meters, and identification range, close enough to confirm it is a hog rather than a dog or calf is 700 meters.
The 2-16x magnification range covers everything from close shots on running hogs at 30 yards through deliberate 300-yard field shots.
The Stream Vision 2 WiFi app connects for real-time display on a phone or tablet, which allows a partner to spot and coach without a separate spotter scope. Video recording captures every hunt.
The Thermion 2 format looks and mounts like a conventional rifle scope, making it comfortable and intuitive for hunters transitioning from daytime optics.
Key Features
| Feature | Specification |
|---|---|
| Sensor | 640×480, 17 micron |
| Lens | 50mm |
| Magnification | 2-16x |
| Detection Range | 1,800+ meters |
| Features | WiFi, video, Stream Vision 2 |
| Refresh Rate | 50Hz |
Pros
- 640×480 sensor delivers the best thermal image quality for animal identification
- 50mm lens extends detection range beyond 35mm alternatives
- 2-16x range covers close through 300-yard hog hunting
- Stream Vision 2 allows spotter display on a phone in real time
Cons
- Highest price on this list
- Heavy at 28 oz with battery
- Battery life of 4 hours requires field recharging on long hunts
Our Take
The Pulsar Thermion 2 XP50 is the right thermal scope for a serious hog hunter who wants the best sensor quality and detection range available. The 640×480 sensor and 50mm lens combination is the standard for professional hog control operations.
#2 AGM Rattler TS35-384 – Best Value
The AGM Rattler TS35-384 is the best value thermal scope for hog hunting. The 384×288 sensor with a 35mm lens delivers reliable animal detection and identification at practical hog hunting distances up to 300 yards for hog-sized targets at a price below the Pulsar and iRay premium tier.
The compact, lightweight housing mounts on a standard Picatinny rail and handles recoil from standard centerfire rifle calibers.
The OLED display provides good contrast in the thermal image. Multiple color palette options (white hot, black hot, red hot) allow adjustment for different background conditions.
For a landowner or recreational hog hunter who wants effective thermal performance at a sensible price, the AGM Rattler TS35-384 is the right entry point.
Key Features
| Feature | Specification |
|---|---|
| Sensor | 384×288, 17 micron |
| Lens | 35mm |
| Magnification | 3x optical (digital zoom to 12x) |
| Detection Range | 900 meters |
| Display | OLED |
Pros
- Best value thermal scope for hog hunting at this sensor and lens tier
- 384×288 sensor reliable for detection and identification inside 300 yards
- Compact housing suits suppressed rifle builds
- Multiple color palettes for different hunting environments
Cons
- Image quality steps down from the 640×480 sensor options
- 3x fixed optical magnification with digital zoom only
- 384×288 resolution makes target identification harder at extended range
Our Take
The AGM Rattler TS35-384 is the honest recommendation for most hog hunters. The detection and identification capability at practical shooting distances is adequate, and the price makes it accessible without the Pulsar premium.
#3 ATN Thor 4 640 2.5-10x – Best for Tech Features
The ATN Thor 4 640 2.5-10x offers 640 thermal sensor performance with ATN’s ballistic calculator, video recording, and WiFi integration in a package priced below the Pulsar Thermion 2.
The ballistic calculator is the ATN-specific advantage. Input caliber, bullet weight, and muzzle velocity, and the calculator adjusts the aiming point for drop at any range. For a hog hunter who shoots at varied distances in the field, this removes the holdover estimation step.
The 2.5-10x optical zoom range covers close running hogs through deliberate distance shots. The 640 sensor provides identification-quality resolution at 400-plus meters.
Key Features
| Feature | Specification |
|---|---|
| Sensor | 640 thermal |
| Magnification | 2.5-10x |
| Features | Ballistic calc, video, WiFi |
| Detection Range | 1,500+ meters |
| Battery | 12 hours |
Pros
- 640 sensor quality at a lower price than the Pulsar Thermion 2
- Ballistic calculator eliminates holdover estimation at varied distances
- 12-hour battery is the best on this list for extended night hunts
- WiFi streaming for real-time spotter display
Cons
- ATN thermal image processing quality below Pulsar at equivalent sensor resolution
- Heavier than the AGM Rattler at 26 oz
- Electronic complexity introduces more failure potential in field conditions
Our Take
The ATN Thor 4 640 is the right choice for a hog hunter who wants 640 sensor quality with ATN’s ballistic calculator at a price below the Pulsar Thermion 2. The 12-hour battery is practical for all-night hog control operations.
#4 Sector Optics S-1 19mm – Best Compact
The Sector Optics S-1 with 19mm lens is the compact thermal option for a hog hunter who wants to keep the total rifle package short and light for mobile hunting.
The smaller 19mm lens reduces both the physical size and the detection range compared to 35mm and 50mm alternatives.
Detection range on a hog-sized target is 400 to 500 meters, which is more than adequate for most field and feeder-station hog hunting inside 150 yards.
The compact housing suits suppressed AR-15 builds where total length matters.
For a hunter who works feeders and bait stations where hogs are within 100 yards, the S-1’s detection range is adequate at a lower price and smaller form factor.
Key Features
| Feature | Specification |
|---|---|
| Sensor | 384×288 or higher depending on variant |
| Lens | 19mm |
| Detection Range | 400-500 meters |
| Mount | Picatinny |
Pros
- Most compact thermal option for short suppressed rifle builds
- Adequate detection range for close-range feeder and bait station hunting
- Lighter than 35mm and 50mm alternatives
- Lower price than larger-lens options
Cons
- Reduced detection range compared to 35mm and 50mm options
- Not suitable for open-field hog hunting where detection range matters
- Smaller thermal sensor collects less heat data in cold conditions
Our Take
The Sector Optics S-1 is the right compact thermal for a hog hunter who works tight quarters around feeders and needs to keep the rifle build compact.
#5 iRay RICO Mk1 640 – Best Premium
The iRay RICO Mk1 640 is the premium thermal scope for hog hunting at the top of the price range. The 640×512 sensor at a high refresh rate delivers the smoothest, highest resolution thermal image available for fast-moving hog targets. Detection range exceeds 2,000 meters.
The 4x optical magnification and digital zoom provide good coverage across hog hunting distances.
iRay’s image processing algorithms handle noisy thermal backgrounds, such as warm ground after a hot day, better than competing platforms.
For commercial hog control operators or serious hunters who want the best thermal imaging available, the RICO Mk1 640 is the reference standard.
Key Features
| Feature | Specification |
|---|---|
| Sensor | 640×512, 12 micron |
| Lens | 35mm |
| Magnification | 4x optical |
| Detection Range | 2,000+ meters |
| Refresh Rate | 50Hz |
Pros
- 640×512 sensor delivers the highest resolution thermal image on this list
- 12 micron pixel pitch provides the best sensitivity in low-temperature differentials
- 50Hz refresh rate shows smooth motion on running hogs
- iRay’s image processing handles complex thermal backgrounds well
Cons
- Highest price on this list
- 4x fixed optical magnification less flexible than the Pulsar’s 2-16x zoom
- Premium investment suited to commercial or intensive hunting operations
Our Take
The iRay RICO Mk1 640 is the right thermal scope for a professional hog control operation or a serious hunter who wants the best thermal imaging available without compromise.
Did You Know? Feral hogs are not native to North America. They are descendants of domestic pigs brought by Spanish explorers in the 1500s and European wild boar introduced for hunting in the 1900s. The two populations crossbred, producing an extraordinarily adaptable and prolific animal that now inhabits 35 states and causes over $2.5 billion in agricultural damage annually. A sow can produce two litters of 4-12 piglets per year, meaning a population of 100 hogs can grow to 400 animals in a single year without active control. Night hunting using thermal optics is one of the most effective tools available for private landowners attempting population management.
Frequently Asked Questions: Best Thermal Scopes for Hog Hunting
What is the difference between 384 and 640 thermal sensors for hog hunting?
A 640×480 sensor has three times as many pixels as a 384×288 sensor. The result is a sharper, more detailed thermal image that allows target identification at greater distances. For hog hunting inside 200 yards, 384×288 is adequate. For open-field work at 300-plus yards, 640×480 provides better identification capability.
How far can a thermal scope detect a hog?
Detection – seeing a heat signature, happens at much longer range than identification. A 384×288 scope detects hogs at 600-900 meters but identifies them only inside 300 meters. A 640×480 scope detects at 1,500-2,000 meters and identifies inside 700 meters.
Do I need a special mount for a thermal scope?
Most thermal scopes use a standard Picatinny mount and attach to any rifle with a Picatinny rail. The Pulsar Thermion 2 mounts like a conventional rifle scope and uses standard 30mm rings.
What rifle is best for thermal hog hunting?
The suppressed AR-15 in .300 Blackout is the most popular platform for thermal hog hunting. The combination of AR reliability, suppressor compatibility, and .300 Blackout’s effectiveness with subsonic loads makes it ideal for nighttime use where minimizing sound signature helps keep multiple hogs in range.
Is thermal or digital night vision better for hog hunting?
Thermal is more effective for initial animal detection. A thermal scope finds hogs in complete darkness, in thick brush where body heat penetrates vegetation, and at distances where digital night vision struggles even with IR illuminators. Digital night vision provides better visual detail and identification in partial light conditions. —
Verdict
Thermal imaging is the most effective night hunting technology available for hog control, and the right scope depends on your application, hunting distance, and budget.
For the best combination of sensor quality and detection range, the Pulsar Thermion 2 XP50 is the definitive choice.
For the best value at practical hog hunting distances, the AGM Rattler TS35-384 delivers reliable performance at a lower price.
The Thor 4 640 is the right tech-forward choice for ATN’s ballistic calculator and 640 sensor quality with a 12-hour battery.
For compact suppressed builds around feeders, the Sector Optics S-1 delivers adequate performance in a smaller package.
And for maximum thermal image quality without compromise, the iRay RICO Mk1 640 is the premium reference standard.
Richard Brown is a long-range shooting enthusiast and competitive shooter with extensive experience in scopes across multiple disciplines. He hunts regularly across the Midwest and has built his expertise through years of hands-on testing in both competitive shooting and hunting. Richard also instructs youth rifle shooting, which has given him perspective on scopes at every price point and skill level. He combines technical knowledge with practical field experience to provide honest reviews – contact me