Shooting 5.56 out of a .223 rifle...

This expert guide from Line45 provides a strategic approach to stockpiling ammunition, anticipating potential shortages. It details seven critical calibers (.22 LR, 9mm Luger, .223/5.56 NATO, 12 Gauge slugs/buckshot, 7.62x39mm, .308/7.62 NATO, and niche calibers) that Americans should consider stocking. The advice emphasizes maintaining separate reserves for training and defensive use, considering supply chain vulnerabilities, import restrictions, and geopolitical factors.

Ammunition prices have significantly decreased across multiple calibers in 2025, returning to pre-pandemic levels for many. This video highlights 10 calibers that are now exceptionally affordable, including 9mm Luger, .223 Remington/5.56 NATO, .22LR, .40 S&W, 7.62x39mm, .308 Winchester, 12 Gauge birdshot, and 5.45x39mm. The speaker, Ted from Line45, emphasizes that this is an opportune time to stock up due to stabilized supply chains and potential future price increases, especially with upcoming election cycles and possible tariffs.

This expert-level guide delves into the nuances of AR-15 barrels, specifically comparing 5.56 NATO and .223 Wylde chambers. It clarifies ammunition compatibility, explains how chamber and throat dimensions affect accuracy and velocity, and discusses the trade-offs between the two for different shooting applications. The information is presented with an authoritative tone, drawing on practical experience with various firearms and ammunition.

This video tests the ballistic penetration capabilities of a 100-pound lead block against various firearm calibers, from .22LR up to a .50 BMG. The test demonstrates that while smaller calibers leave minimal marks, larger rounds create significant craters. Notably, even powerful rifle rounds like the .308 and .223 fail to fully penetrate the block, highlighting lead's effectiveness as a projectile barrier. The .50 BMG is the only caliber shown to successfully penetrate the entire block and reach the target behind it.

This video from God Family and Guns identifies the five most expensive and least budget-friendly calibers to stockpile: .300 Blackout, 10mm Auto, .45 ACP, 6.5 Creedmoor, and .308 Winchester/7.62 NATO. The instructor, demonstrating significant expertise in ammunition markets and firearm applications, provides cost estimates and offers more affordable, mass-produced alternatives for each. The advice is geared towards individuals looking to build an ammunition reserve on a budget, emphasizing value and availability.

This video provides a visual overview of Tinck Arms AR-style rifles, specifically the ARX15 model. It demonstrates basic manipulation such as magazine insertion and charging, highlights features like optics and suppressors, and showcases the brand's identification on the lower receiver. The technical specifications for the ARX15 14.5 Tactical are also presented.

This review showcases the rare HK XM8 prototype assault rifle, highlighting its modular polymer construction and integrated reflex sight. The demonstration includes loading IMI Systems 5.56mm ammunition into a translucent 30-round magazine and performing live-fire exercises at an outdoor range, emphasizing safe handling and the weapon's cycling capabilities.

This video showcases a gold-plated Desert Eagle chambered in .50 Action Express. The demonstration includes a thorough safety check, selection of Armscor .50 AE JHP ammunition, proper loading procedures, and a live-fire sequence highlighting the substantial recoil and cycling of this powerful handgun. The presenter, identified as FrenchGunGuy, exhibits safe firearm handling and appropriate PPE usage.

This video provides an in-depth look at the Heckler & Koch HK 33K rifle paired with an LMT M203 grenade launcher. It covers preparation of both 5.56mm M855 ammunition for the rifle and 40mm M781 practice grenades for the launcher. The demonstration includes live fire of the HK 33K and a functional test of the M203, showcasing the combined tactical capabilities of this military firearm setup.

This video showcases a suppressed Colt M4 Carbine in a range day setting. It highlights the use of 5.56mm M855 ammunition and features a Trijicon ACOG optic and B5 Systems stock. The demonstration focuses on the suppressed firing signature with minimal commentary, emphasizing visual and auditory experience.