Videos tagged with 77 Grain Sierra Match King

This video tests the accuracy and velocity of four different AAC 5.56 ammunition loads (69gr HPBT, 69gr Sierra Match King, 77gr OTM, 77gr Sierra Match King) fired from a 16-inch Bear Creek Arsenal upper with a 1:8 twist rate. The instructor notes that the rifle has become more accurate as it has broken in. While most loads performed well, the 77gr Sierra Match King showed inconsistent results, particularly in five-shot groups.

This video demonstrates the installation and initial use of the Lee Rifle Micrometer Adjust Screw for Lee bullet seating dies. The presenter highlights its ease of use, affordability, and improved precision for handloaders. The video also includes extensive range testing of various .223 Remington loads, comparing different brass types and bullet weights, with detailed performance data.

This episode of Nuke Our Parks discusses AR-15 barrel lengths, specifically the debate between 10.3 and 11.5 inches, and how ammunition choice impacts terminal ballistics. It also covers the utility of revolvers as backup guns, the importance of proper magazine loading (28 rounds), and the necessity of body armor, recommending Hesco plates as a budget-friendly option. The discussion emphasizes building a community through training and shared knowledge.

This video demonstrates the performance of the Rosco Manufacturing SPR barrel, specifically an 18-inch rifle-length gas system model. It highlights the barrel's ability to group various match-grade 77-grain and 75-grain ammunition types accurately at 100 yards, showcasing its versatility for different shooting applications. The setup includes a Griffin Armament PSR 5 muzzle brake for suppressor use.