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Q&A · Hunting

Can I use thermal optics with .338 Federal for elk hunting?

April 5, 2026

Quick Answer

Thermal optics can be used with the .338 Federal for elk hunting, but a higher magnification and resolution may be beneficial for detecting and engaging distant elk.

Choosing the Right Thermal Optics

When selecting thermal optics for elk hunting with the .338 Federal, consider a device with a high magnification (at least 5x) and a high resolution (400-600 TVL). This will help you detect and engage distant elk, especially in open terrain. A larger objective lens (at least 60mm) will also improve low-light performance and provide a wider field of view.

Setting Up Your Rifle and Optics

To effectively use thermal optics with the .338 Federal for elk hunting, ensure your rifle is properly zeroed and that your thermal optic is set up for optimal performance. This includes adjusting the reticle size and color to match your surroundings, and calibrating the device to compensate for environmental factors like temperature and humidity. A good starting point is to adjust the reticle size to 4-6 MOA, and the color to a mid-range setting (such as “elk” or “game”).

Tips for Effective Elk Hunting

When using thermal optics for elk hunting with the .338 Federal, remember that elk are highly sensitive to movement and light. Approach your target slowly and quietly, and use cover and concealment to get close. When engaging your target, consider the wind direction and speed, as well as the terrain, to ensure a successful shot. Aim for a spot just behind the elk’s shoulder, about 1.5-2 inches below the base of the ear. This will help ensure a quick and humane kill.

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