Clint is at Take Aim Training and Range with a .308 build after changing the position of the optic, which requires re-zeroing. He demonstrates using an AimShot laser boresight kit as a starting point, noting that only actual bullets provide a precise point of impact. The kit includes a magnetic .223 boresight that can attach to metal surfaces, with a rear on/off switch and a green laser for better visibility in daylight. A .308 shroud allows the .223 boresight to be used in a .308 chamber. After feeding the boresight into the shroud and carefully seating it in the chamber without closing the bolt, the green laser appears on the target, providing an initial reference for zeroing before live fire.
With the laser on target, the impact appears low and right relative to the reticle. Clint explains that turret adjustments move the point of impact, so turning the elevation turret to move impact up effectively drops the reticle, and adjusting windage left moves impact left. He makes small corrections on the Leupold Mark AR optic, then removes the boresight and loads a Lancer magazine. A first live round at center mass lands slightly low but on target. Using the known point of aim and visible point of impact, he dials the crosshairs to the impact location to achieve a more precise zero. A follow-up shot at center mass lands exactly where intended, and additional shots, including a head shot, confirm the magnified optic is effectively zeroed.
After covering magnified optics, Clint moves to iron sights on an AR platform, noting the process is similar but uses mechanical adjustments instead of turrets. Elevation is controlled at the front sight post using a front sight tool or a bullet. The post is depressed at the locking tab and rotated, with markings indicating the direction for raising impact. Lowering the front sight post effectively raises the barrel and point of impact. He emphasizes knowing the exact distance to the target and confirms he is at approximately 25.5 yards using a rangefinder. With the optic removed and used as a spotting scope, he fires a shot with irons at the carriage bolt area of the target and observes the impact slightly low, setting up for further elevation and windage corrections.
Clint explains that most AR rear sights have a windage knob that shifts the rear aperture left or right. He uses a KNS Armament rear sight with numbered indicators and a range scale from 200 to 600 yards, allowing a set mechanical zero and elevation adjustments. Observing that impacts are slightly left and low, he rotates the front sight post one increment to raise impact and then adjusts the rear windage knob several clicks to the right. Using the removed ACOG as a spotting optic, he confirms windage looks correct but elevation still needs minor refinement. Additional shots show impacts moving from low to slightly high at the top of the head, so he brings the front sight post back down slightly. After another shot, the hits appear centered, indicating a solid iron sight zero at the measured distance.
With both magnified optics and iron sights addressed, Clint notes that red dot sights are adjusted in the same basic way: small, deliberate changes in elevation and windage until point of aim and point of impact coincide. He describes a one-shot zero technique that depends on a stable shooting platform. After firing a single round while maintaining a consistent hold, the shooter notes the exact point of aim and observed point of impact. The optic’s reticle is then dialed from the original point of aim to the bullet hole location. If the rifle remains stable during this process, the next shot should land at the desired point of aim. He emphasizes that zeroing should be efficient and methodical, rather than a prolonged process of guessing at the target.
Clint closes by mentioning a previous zeroing session with Alex Zedra using a Barrett M107 chambered in .50 BMG. The rifle is a semi-automatic, 10-round .50 BMG platform equipped with an EOTech Vudu optic offering variable magnification from approximately 3.5–12x up to 18x, as described in the video. They used the rifle in a running-and-gunning context, applying the same zeroing principles of aligning point of aim and point of impact. The segment highlights that the fundamentals of establishing a proper zero apply equally to large-caliber platforms like the Barrett M107 and to more common calibers such as .308 and 5.56, regardless of whether the optic is a magnified scope, red dot, or iron sight system.
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