Videos tagged with Velocity Loss

This video provides a detailed comparison between the Bul Armory Ultralight (UL) and the UL Pro, focusing on the impact of V6 porting on the latter. The reviewer, an experienced shooter, found that despite initial concerns about accuracy and velocity loss due to the short barrel and porting, the UL Pro maintained excellent accuracy across various ammunition types. The review covers shooting impressions, technical specifications, fit and finish, and potential downsides like availability, noise, and maintenance.

This video compares the Garmin Xero C1 Pro ($600) against a budget Amazon Special chronograph ($50) for measuring projectile velocity. The presenter tests various rifle and handgun calibers, including suppressed and unsuppressed configurations, noting significant differences in accuracy and reliability between the two devices. The Garmin unit proves more consistent and durable, despite a screen crack from muzzle blast, while the budget option exhibits frequent failures and less accurate readings, especially with higher velocities.

The Caldwell Velociradar offers a radar-based approach to ballistic measurements, distinguishing itself from traditional optical chronographs. It measures bullet velocity and trajectory over distance, allowing for the calculation of ballistic coefficient (BC) and velocity loss due to drag. This provides more comprehensive data for understanding ammunition performance, even for non-reloaders using factory loads.

This review of the K Industry K15 AR pistol with a 4.75-inch barrel highlights its extreme concealability but notes significant trade-offs in dwell time and velocity. The firearm experienced multiple malfunctions, primarily failure to extract, attributed to a faulty extractor. After replacing the bolt carrier group, performance improved dramatically. The review also covers accuracy testing at various distances and compares it to a Fold AR pistol.

This video discusses the impact of bullet weight on ballistic performance, particularly velocity loss at distance. The speaker plans a future test comparing heavy (208gr) and light (150gr) bullets in .30-06 Springfield, loaded to similar muzzle velocities and then to maximum potential. The core argument is that comparing bullets of significantly different weights for caliber (e.g., light 9mm vs. heavy .40 S&W) leads to skewed results, as heavier bullets generally offer better penetration due to higher sectional density, while lighter bullets can achieve higher velocities and potentially more expansion.

This video presents a 100-yard ballistic test comparing 5.56x45mm NATO, 6.5 Grendel, and 7.62x39mm ammunition. The host measures muzzle velocity and energy, then re-measures at 100 yards to determine velocity and energy loss. The results highlight how bullet weight, ballistic coefficient, and diameter affect downrange performance, with the 7.62x39mm demonstrating surprising energy retention despite a lower BC than the 6.5 Grendel.

This video compares the 50 Beowulf and 6.5 Grendel, focusing on how ballistic coefficient affects bullet performance at 100 yards. It demonstrates significant velocity and energy loss in the 50 Beowulf's low BC bullet compared to the 6.5 Grendel's higher BC bullet, highlighting the importance of BC even at shorter distances.

This guide explores the critical relationship between barrel length and performance for the .308 Winchester cartridge, specifically within the context of a 12-inch barrel Short Barreled Rifle (SBR) build by Aero Precision. Expert Tim Harmsen of Military Arms Channel discusses the velocity trade-offs and demonstrates the handling of a suppressed SBR on an outdoor range, offering insights into practical effectiveness.

This video details the performance of a Smith & Wesson Shield Plus after barrel porting by Magna-Port. The presenter, Jerry Miculek, discusses the observed velocity loss with various ammunition types and highlights the significant improvement in shootability and muzzle control, deeming it a worthwhile enhancement for a carry gun.

This video provides expert guidance on selecting the right rifle by focusing on individual needs rather than trends. It details how barrel length, diameter, action type, and furniture affect performance and suitability for different hunting scenarios. The instructor emphasizes understanding cartridge efficiency and the trade-offs between various rifle configurations to make an informed purchasing decision.