Which is best for SHTF? 308 vs 5.56

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, presented by Ted from Line45, outlines seven essential ammunition calibers for Americans to stockpile in anticipation of potential future ammo shortages, drawing parallels to past events like 2020. The instructor emphasizes strategic selection based on availability, demand, and utility for self-defense, training, and general preparedness. The advice is geared towards intermediate shooters with existing firearm knowledge.

The US military is transitioning to the 6.8x51mm (.277 Fury) cartridge as part of the Next Generation Squad Weapon (NGSW) program, replacing the 5.56x45mm NATO. This new caliber offers significantly increased lethality and effective range, driven by its ability to handle higher pressures (up to 80,000 PSI) and deliver superior energy. The system includes the Sig Sauer XM7 rifle and XM250 light machine gun, paired with advanced fire control systems like the XM157.

This video, titled "Emergency Release - Full Doomsday Mobilization," appears to be a call to action or a demonstration related to preparedness and survival scenarios, as suggested by the "Doomsday Mobilization" title. The description heavily emphasizes supporting the channel through various links, including a specific "Combat Llama Infantry Patch" available for purchase, Patreon, Venmo, and Instagram. A detailed legal disclaimer clarifies that the content represents the creator's views and is based on unclassified doctrine and public source information, referencing military field manuals and the Ranger Handbook, implying a focus on tactical or military-style preparedness.

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 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.

The Daniel Defense DDM4 PDW chambered in .300 Blackout is presented as a highly effective modern defensive tool. It features a 7-inch barrel, 20-round capacity, and is shown with accessories like a Trijicon RMR and Surefire Scout light. The .300 Blackout cartridge's utility in a PDW platform is highlighted, despite common misunderstandings, with a live-fire demonstration showcasing its effectiveness.

This video compares the 5.56 cartridge to the more powerful .30-06 Springfield, highlighting the latter's historical use. It features a Remington 742 semi-automatic rifle in .30-06, questioning the classification of traditional firearms as 'assault weapons'. Live fire demonstration showcases the rifle's performance.

This review details the AR-57 upper receiver, a conversion for the standard AR-15 platform chambered in 5.7x28mm. It highlights the unique top-mounted P90 magazine system and a clever downward ejection modification using a cut Magpul PMAG to catch spent brass. The demonstration confirms the effectiveness of this brass-catching hack.

The Ruger Mini-14, chambered in .223 Remington/5.56 NATO, is examined for its 'weapon of war' status. The review highlights its modularity, demonstrated by a quick stock swap from synthetic to wood folding. Live fire shows its capabilities, contrasting its public perception with other firearms.