Videos tagged with Zero Shift

This review of the SMS Trinity laser/illuminator by Kyle from 4MR Ranch highlights its budget-friendly nature but reveals significant performance issues. While the IR laser and illuminator diodes remain stable, the device suffers from substantial zero drift, particularly on higher recoil platforms like the SCAR 17. The review emphasizes that despite its low cost compared to premium units, frequent manual zero adjustments are necessary, making it a less reliable option for consistent accuracy.

This video from SmythBusters investigates the common practice of mounting optics on AR-15 handguards, including bridging the receiver and handguard. Steve and Caleb from Brownells use red dot sights and LPVOs to demonstrate how this mounting method impacts accuracy, group size, and zero retention. They conduct drop tests to show zero shift and compare the performance of optics mounted on the handguard versus the receiver. The video concludes by debunking this internet myth and emphasizing the importance of proper optic mounting for reliable firearm performance.

This video provides first impressions and setup details for the Sons Of Liberty Gun Works (SOLGW) Broadsword rifle after several hundred rounds. The instructor highlights the new precision barrel's features, including its heavier profile and smaller gas port for improved accuracy and recoil management. He also discusses the M89 rail's anti-rotation design and demonstrates the rifle's impressive consistency with various ammunition types, showing minimal zero shift and reliable performance.

The Desert Tech MDRx is critically reviewed, highlighting its ambitious multi-caliber conversion system which, despite mechanical execution, adds complexity and weight. While it struggles as a 5.56 bullpup due to excessive weight and past reliability issues, it shows potential as a compact .308 battle rifle. Key flaws include significant zero shift from the handguard mounting and ergonomic issues like a binding magazine release.

This video tests the return-to-zero capability of a Terminus Zeus switch barrel system. The presenter will demonstrate the process of removing and reattaching a barrel multiple times, shooting groups after each swap. The primary focus is on observing any zero shift that occurs, aiming to determine the effectiveness of the switch barrel design for maintaining zero without re-sighting.

This video addresses a potential issue with an AI-AT rifle experiencing a significant zero shift after cleaning, prompting concern from the creator. The video also aims to gather drop data and mentions an upcoming class by Frank Galli. The creator is seeking community input to diagnose the rifle's problem. Various shooting-related gear and resources are linked in the description, indicating a focus on precision shooting and long-range applications.

This video details a heat stress testing procedure for AR-15 barrels, specifically for the WWSD2020 project. Lead Firearms Instructor and SEO Strategist Ian McCullum demonstrates how to assess barrel performance under rapid fire conditions. The test involves firing a cold group, rapidly expending a 30-round magazine to heat the barrel, and then firing a hot group to observe any zero shift or group expansion. This rigorous testing validates modern barrel manufacturing techniques.

This video reviews the Wolf PSU NPZ 1-4x scope, presenting it as a direct competitor to the Elcan optic due to its flip lever for variable magnification between 1x and 4x. The reviewer details an unusual experience at a rifle match where the shooter performed better at 4x magnification than at 1x on a left-handed Spuhr enhanced G3 rifle. The video covers zero testing of the rifle at 4x and raises the question of potential zero shift issues when switching between magnification settings on the scope. The channel emphasizes viewer support through Patreon.

This video performs a detailed comparison of Glock 19 barrels, focusing on the impact of changing barrels on the zero of a red dot sight. The creator utilizes a Ransom Rest to eliminate shooter error, firing identical groups with various generation Glock OEM barrels and a new Faxon "match grade" Glock 19 barrel. The primary questions addressed are how much zero shift occurs when swapping barrels and which barrels yield the tightest groups, highlighting the practical accuracy advantages of red dot equipped pistols.