You're Mounting Your Scope To Low?

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 how to test propellant temperature sensitivity, a crucial factor for consistent long-range accuracy. It emphasizes using a reliable chronograph and testing ammunition across a wide temperature range, from cold to hot conditions. The process involves calculating the muzzle velocity change per degree Fahrenheit to understand how temperature fluctuations affect performance, enabling shooters to account for these variations in their ballistic solutions.

This guide details the process of zeroing a handgun optic, emphasizing the reduction of shooter error by using a stable rest. It covers firing initial groups, calculating adjustments based on optic specifications, and making incremental changes to achieve a precise point of impact at a recommended 25-yard distance, while acknowledging the impact of environmental factors like wind.

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 from GBRS Group explains the ballistic principles of deviation and deflection. Deviation is defined as a projectile passing through an object, while deflection is a contact that disrupts or changes trajectory. The demonstration uses 5.56x45mm rounds impacting pillars to illustrate these concepts, showing how fragments can cause minor disruption without lethal effect.

This video explains the fundamental differences between Minute of Angle (MOA) and Milliradian (MIL) as units of angular measurement used in rifle scopes. It clarifies that MOA is 1/60th of a degree, equating to approximately 1 inch at 100 yards, while MIL is 1/6400th of a circle, equating to 10 cm at 100 meters. The instructor notes that most precision scopes use quarter MOA adjustments, allowing for fine-tuning.

This video provides an expert-level comparison between the .44 Magnum and .50 Action Express calibers, featuring a Magnum Research Desert Eagle and a Ruger Super Redhawk. The host, demonstrating high authority, conducts a series of tests including penetration through lumber, steel, sand, and concrete, followed by ballistic gel testing with hollow-point rounds. The analysis highlights differences in muzzle energy, penetration, and wound channel, ultimately questioning the cost-to-performance ratio of the .50 AE.

This video provides an in-depth, experimental comparison between .223 Remington and 5.56x45mm NATO cartridges, utilizing a chronograph and various barrier materials. The host, demonstrating high expertise through empirical testing, reveals significant performance differences, particularly in barrier penetration, with 5.56x45mm NATO generally outperforming .223 Remington.

This video from Banana Ballistics explores the surprising lethality of "less lethal" shotgun ammunition. Through rigorous testing with ballistic gel and plywood, the host demonstrates that rounds like bean bags and high-velocity .410 rubber buckshot can cause significant damage, challenging the common perception of these rounds as entirely non-lethal. The testing highlights the importance of understanding ammunition performance beyond its intended classification.

This video provides an objective comparison of 9mm Luger, .40 S&W, and .45 ACP calibers through a series of rigorous tests including lumber, sand, concrete, and ballistics gel. The host, leveraging specialized equipment like a Garmin Xero C1 Pro chronograph and digital calipers, presents data on velocity, penetration, and expansion. While .40 S&W showed competitive performance in some tests, the analysis concludes with a preference for 9mm due to its higher capacity and lower recoil, highlighting the importance of practical considerations beyond raw ballistics.