Ep: 1776-0014- WITH CHUCK PRESSBURG Pt 2

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 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.

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 expert guide from NRA America's Rifle Challenge, featuring Kyle Lamb, details how to zero an AR-15 rifle for various shooting scenarios. It covers initial zeroing at 100 yards, understanding height over bore, and advanced dialing techniques for longer ranges using specific ammunition and scope adjustments. The instruction emphasizes practical application for competition divisions.

This video explains the critical concept of 'height over bore' (HOB) and its impact on point of aim versus point of impact, especially at close ranges. The instructor demonstrates how HOB, combined with a rifle's zero distance, creates a mechanical offset that causes shots to impact lower than the reticle at distances closer than the zero. Understanding and compensating for this offset through holdovers is presented as essential for accurate shooting under pressure.

This guide details AR-15 zeroing techniques, emphasizing that 'mission dictates gear.' Instruction from experienced firearms professionals Kaya and Jason covers POA/POI mechanics, and analysis of common zeros (25, 36, 50, 100-yard) with considerations for barrel length and ammunition. The 50-yard zero is highlighted as a versatile and 'foolproof' option for most users.

This guide details the installation and key features of the Sons of Liberty Gun Works MK 1 handguard, emphasizing the rigid Drive Lock system for laser zero and seamless receiver-to-rail continuity. It highlights cable management channels and the flat bottom for barricade stability. The information is presented with technical detail, reflecting the expertise of the manufacturing company's representative.

This video provides an expert overview of the Sons of Liberty Gun Works (SOLGW) OB 1 rifle, a collaborative project with Christian Craighead. Drawing on Craighead's 28 years of military experience, including Tier 1 Special Operations and lead instructor roles, the OB 1 is designed as a versatile 'do-it-all' rifle. Key features include a 13.7-inch barrel with a pinned Huxwrx muzzle device for 16-inch legal length, Magpul furniture, and a distinctive Rhodesian Brushstroke camouflage finish.

This guide details the process of dimpling an AR-15 barrel for proper gas block alignment, a critical step often overlooked. Instruction from Sons of Liberty Gun Works emphasizes using specialized jigs and tools to ensure correct placement, preventing malfunctions. Proper installation with Loctite 271 Red and knurled set screws guarantees a secure gas block, vital for reliable firearm operation.

This video provides an in-depth look at the Sons of Liberty Gun Works (SOLGW) MK1, detailing its advanced mechanics and materials. The presentation, delivered with high authority by a SOLGW representative, covers unique features like its specialized rail with dual indexing dowels, aggressive laser stippling, and a port door rod access point. It also delves into material science, discussing barrel options including ARMAD steel, titanium barrel nuts with aerospace coatings for heat dissipation, and enhanced bolt catch mechanisms. The MK1 is highlighted for its extreme reliability testing and design philosophy prioritizing function in adverse conditions over commercial trends.