Why You Keep Missing Close Shots | The Truth About Height Over Bore

This video from Brownells, featuring Caleb, explores the optimal zero distances for an AR-15, primarily for competition use. It analyzes four common zero distances: 25, 36, 50, and 100 yards, detailing their impact zones on an IPSC A-zone target at various ranges. The instructor emphasizes that the 'best' zero is dependent on the intended use of the firearm and the optic employed, recommending the 100-yard zero as a versatile option for experienced shooters, while suggesting 36 or 50 yards for those using red dots or LPVOs respectively, especially for closer engagements.

Jeff Gonzalez of Trident Concepts explains mechanical offset for AR-15s, defining it as the height difference between the optic's center and the bore's center, typically around 2.5 inches for red dots. He emphasizes its importance for accurate shooting, especially at close ranges (10 yards and in), and when shooting from cover, advising shooters to measure their offset and practice adjustments to ensure effective fire and safety.

This guide, presented by DJ Shipley from GBRS Group, details the critical concept of height over bore for AR-15 style rifles equipped with red dot sights. It explains how the physical distance between the optic and the barrel affects point of impact, especially at close ranges. The video demonstrates how to compensate for this offset, particularly when zeroing at 25 yards and engaging targets in CQB scenarios, emphasizing the need for precise aiming adjustments to ensure hits in critical areas.

This video highlights critical firearm safety failures and explains the concept of 'height over bore.' It demonstrates how the difference in height between a firearm's optic and its barrel affects bullet impact, especially at close ranges. The content emphasizes the importance of understanding this principle and adhering to the four fundamental rules of gun safety to prevent accidents.

This content, featuring Retired Sgt. Maj. Kyle Lamb of Viking Tactics, Inc., focuses on the practical application of the AR-15 platform within the NRA ARC Challenge. It emphasizes fundamental shooting skills such as zeroing, understanding mechanical offset, and utilizing holdovers, crucial for both new and experienced shooters. The discussion highlights how the AR platform's modularity and the ARC Challenge's structure encourage skill development and informed gear choices for all levels of firearm owners.

This guide details the installation and zeroing process for the Vortex Viper shotgun enclosed micro red dot sight, presented by Caleb from Brownells. It addresses common shotgun optic mounting challenges like varying receiver hole spacing and comb height issues. The video emphasizes proper screw selection, torquing procedures, and a practical method for zeroing with both slugs and shot, highlighting the optic's features like motion activation and multiple reticle options.

Concrete Cowboy shares five essential concealed carry tips, emphasizing the balance between firearm shootability and comfort, the necessity of a sturdy carry belt and appropriate attire, the importance of prioritizing training over gear upgrades, the critical need for ammunition rotation, and the profound legal and ethical responsibilities of carrying a firearm. The advice is practical and safety-conscious, reflecting an experienced practitioner's insights.

This video provides a practical guide to stockpiling ammunition for SHTF or civil unrest scenarios. It recommends a minimum of filling all available magazines and a goal of 1,000 rounds per caliber. The content emphasizes maintaining a separate training stockpile and offers budgeting tips for common calibers like 9mm and 5.56 NATO, stressing the importance of starting now, even with small purchases.

This guide details the assembly and configuration of a civilian chest rig loadout, emphasizing preparedness for adverse conditions. It covers the T.Rex Arms Quad Flap chest rig, comms setup with a Baofeng UV-5R, ranging tools like the Vortex 1400, and essential medical and navigation gear. The instruction is delivered with a pragmatic, survival-oriented tone, reflecting high authority based on field testing and specific scenarios.

This guide details how to apply a custom camouflage paint job to an AR-15 rifle, as demonstrated by Concrete Cowboy. It covers essential preparation steps like masking, layering colors from light to dark, and utilizing natural stencils for organic patterns. The process emphasizes thorough coverage and proper technique for a durable and effective finish.