This video provides a detailed review of the LMT 14.5" Piston Barrel assembly. The content goes beyond a simple inspection, detailing a six-month evaluation that involved multiple barrels, warranty claims, and issues like chrome flaking. The reviewer performs thorough inspections including throat erosion, headspace gauging, and borescope footage of the chamber and rifling. Shooting data from 30-shot groups with three different ammunition types is presented. The video also covers the manufacturer's warranty experience.
This video features a detailed accuracy test and borescope inspection of a Criterion 16” HBAR rifle. The creator performs a standard 30-shot, 100-yard accuracy protocol and provides practical analysis, including real group measurements. The video also highlights the use of a Teslong Borescope and DNT Optics "TheOne" scope, with links provided for viewers to check out the gear and support the channel. The content is data-driven and focuses on objective testing of firearm components.
This video provides an in-depth review and comparison of two HK MR556 A4 upper receivers. The content details initial inspection issues with the first upper, its warranty experience with HK, and a side-by-side comparison of both units. It features detailed borescope footage of critical components, comprehensive accuracy testing with multiple ammunition types (Federal Gold Medal 77gr SMK, Hornady 73gr ELD Match, IMI Razor Core 77gr, Winchester M193) at 100 yards, including velocity data, group measurements, and A-ZED scoring. Key findings highlight manufacturing variation and performance differences between the two uppers.
This video features the Military Arms Channel (MAC) conducting an accuracy test on a BCM rifle after enduring 10,000 rounds. The test involves taking the rifle to a formal range setting to evaluate its precision and also includes a borescope examination of the barrel to assess its condition after extensive use. The description also points to additional content on Twitter, Patreon, and Utreon, as well as a link to the Modern Gun School and a discount code for Challenge Targets.
This video features a head-to-head comparison of two BCM BFH ELW (Enhanced Lightweight) AR-15 barrels. The creator conducts thorough inspections, including borescoping and headspace checks, revealing some unexpected findings. The testing involves shooting 30-shot groups at 100 yards with three different ammunition types: Winchester 55gr M193 FMJ, Frontier 68gr BTHP, and Federal Gold Medal 77gr SMK. Data is collected using a Garmin Zero C1 Pro chronograph and a Mantis X10 Elite, with results analyzed using mean radius and a custom A-ZED scoring system. The video aims to determine the consistency and real-world accuracy of these specific barrel models and whether any bore anomalies correlate with performance.
This video provides a detailed, no-fluff review of the Centurion Arms 14.7" CHF Chrome-Lined Barrel, a duty-grade AR-15 component. The analysis includes bench inspection, borescope examination, and range testing with three different ammunition types (PMC X-TAC 62gr M855, AAC 75gr BTHP Match, IMI Razor Core 77gr HPBT). The review focuses on performance metrics like velocity, standard deviation, rifle stability (using Mantis X10), group size, and A-ZED scores, aiming to determine if the barrel's design impacts its accuracy and overall effectiveness. The presenter encourages viewer engagement by asking about their own experiences with the barrel.
This video investigates the consistency of Daniel Defense AR-15 barrels by comparing two identical 16" lightweight, cold hammer-forged barrels. The analysis includes a detailed physical inspection with measurements of key dimensions (barrel extension diameter, gas block journal, gas port diameter) and a borescope examination of the rifling, gas port, and crown. This is followed by a practical accuracy test involving 30-shot groups at 100 yards with various ammunition types. Muzzle velocity, standard deviation, and extreme spread are measured using a chronograph to assess performance differences. The video aims to determine if minor manufacturing variances lead to noticeable performance differences in otherwise identical barrels.
This video from SHOT Show 2025 features a discussion with Teslong about their folding borescope, with a specific mention of its use for barrel cleaning. The presenter also details testing conducted at Microtech Knives. Discount codes and links to purchase products from both brands are provided, along with a promotion for XP Long Range Classes.
This video conducts an in-depth evaluation of a JP Enterprises stainless steel AR-15 barrel after enduring 10,000 rounds. The content covers the barrel's history and specifications, assesses throat erosion with a borescope, details the shooting setup for consistent testing, and presents accuracy data from 3x 30-shot groups. The performance is then compared to other tested barrels, offering real-world insights into stainless steel AR-15 barrel longevity and accuracy. The presenter encourages viewer interaction regarding expected accuracy and comparisons to other barrel types.
This video from Bolt Action Reloading highlights the significant benefits of using a borescope for firearm barrel cleaning. The demonstration shows how a borescope, combined with recommended cleaning products like ThorroFlush, can effectively reveal and address issues such as copper fouling and carbon rings within the barrel. The content emphasizes how this tool and process lead to a cleaner, better-performing firearm, offering practical advice for gun owners.
This video provides a detailed look at the Lyman Borecam 2.0, a bore scope designed for inspecting firearm barrels. Caleb from Brownells demonstrates the unboxing process, setup, and highlights key features such as adjustable lighting and smartphone connectivity for capturing photos and videos. The tutorial covers inspecting rifling, gas ports, and chambers, making it a valuable tool for shooters and gunsmiths seeking to maintain and understand their firearms' internal condition.
This video details the performance of a Criterion barrel after enduring approximately 15,000 rounds. The creator inspects the barrel, sets up their rifle and range, and tests various ammunition types (55gr Norma, 69gr Federal, 77gr SMK, 75gr PPU) to assess its remaining accuracy. The video concludes with an overview of the results, a comparison to other barrels, and a borescope examination, suggesting the barrel has reached the end of its useful life but is still capable of shooting groups.
