Mk 262 Cloning - pt 3 - Sierra vs Nosler with CFE223

This comprehensive review details the performance of a custom Krieger AR-15 barrel, finished by RPM Rifle Works. The barrel, featuring a 1:7 twist and intermediate gas system, was tested with various match and bulk ammunition. Expert analysis includes detailed borescope inspections, group size measurements, and velocity data, highlighting its exceptional accuracy potential with premium loads.

This video provides an expert-level examination of the Mk 262 Mod 1 5.56mm round, famously used in the operation that eliminated Osama Bin Laden. The host, demonstrating high authority, conducts a ballistic test on a human bust, showcasing the round's devastating close-range effectiveness. The test confirms the Mk 262 Mod 1's capability to cause extreme trauma, rendering targets unrecognizable.

This review compares civilian Black Hills 77gr OTM and military Mk 262 Mod 1 5.56mm ammunition. While visually similar, the military round features non-staked primers and consistently shows higher velocities (around 2675 fps vs 2659 fps). Terminal performance tests in watermelons and ballistic gel indicate the Mk 262 Mod 1 offers slightly more dramatic energy transfer and a larger wound cavity, suggesting it is functionally more powerful.

This review details the Black Hills 77gr OTM 5.56mm Mk 262 Mod 1 ammunition, highlighting its premium cost and alleged use by special operations. Testing demonstrates exceptional accuracy with a sub-half-inch group at 50 yards and significant terminal performance, including fragmentation and tissue destruction against various mediums like cinder blocks, steel, watermelons, pork shoulder, and ballistics gel.

This review details the LMT NZ 16, a rifle based on the military issue model supplied to New Zealand. It highlights unique features like the ambidextrous MARS-L lower, monolithic MRP upper, and Surefire Warcomp. The video also transparently addresses past reliability issues with firing pin breakages and bolt carrier cracking in NZDF service, attributing them to manufacturing defects and LMT's subsequent warranty support.

This video demonstrates a successful method for removing a severely stuck case from an AR-10 barrel using a high-pressure grease gun and hydraulic oil. Despite a previous gunsmith's failure, the technique involving a custom adapter and specialized grease gun achieved extraction. Post-removal inspection and range testing confirmed the barrel's integrity and sub-MOA accuracy.

This video provides a comprehensive guide to reloading ammunition for the Thompson Center Compass chambered in 300 Winchester Magnum. It meticulously covers each stage of the reloading process, from an introduction and detailed discussion of components and equipment to the practical steps of brass resizing and preparation, load data analysis, setting overall length (OAL), priming, powder charging, and bullet seating. The video culminates in a range test to evaluate the reloaded ammunition, followed by a brass inspection and group review, and concludes with future plans. The content is highly educational for anyone looking to start reloading this specific caliber and rifle.

The Vortex Diamondback Tactical 6-24x50 offers excellent value for its $400 price point, featuring First Focal Plane (FFP) capability and a usable EBR-2C reticle. While it shows some chromatic aberration and has slightly mushy turrets compared to higher-end models, its tracking accuracy is comparable to the more expensive Strike Eagle. It's a strong contender for budget-conscious long-range shooters, though FFP might be less ideal for hunting than SFP.

This video explores the experimental firing of .22 airgun pellets using .22 caliber nail gun blanks, achieving velocities over 2200 fps with Level 4 loads. Despite some pellet instability at 50 yards, accuracy remained surprisingly tight, demonstrating the potential for this unconventional projectile method. The host emphasizes proper muzzle-loading technique for rifling engagement and uses a chronograph for precise data collection.