Videos tagged with Vihtavuori N540

This video details the load development process for a 6.5 Grendel deer hunting round, focusing on the 120gr Speer Gold Dot bullet. The instructor tests AR Comp and Vihtavuori N540 powders, meticulously recording velocities, pressure signs, and group sizes at 100 yards. The final selected load of 27.6 grains of AR Comp demonstrates excellent accuracy and velocity, making it suitable for hunting.

This video explores the impact of muzzle devices and suppressors on rifle accuracy, specifically barrel harmonics. The presenter tests various muzzle brakes, flash hiders, and a suppressor on a Thompson Center Compass and an AR-10, observing significant group size and point of impact shifts. The experiment aims to understand if added weight at the muzzle dampens barrel vibrations and improves accuracy, though the results prove complex and counterintuitive, leading to a need for further testing.

This video details the process of reloading 6.5 Grendel ammunition using 140-grain Hornady Match BTHP bullets and Vihtavuori N540 powder. The instructor outlines a load development strategy, starting with 25.5 grains and increasing in 0.5-grain increments up to 27.5 grains, while meticulously setting overall cartridge length and monitoring for pressure signs. The testing also explores the impact of a suppressor on point of impact and group size, linking it to an upcoming video on barrel harmonics.

This video details a reloading and ballistics test of the .223 Remington cartridge using 77gr Berger OTM Tactical bullets and Vihtavuori N540 powder. The instructor, with apparent expertise in reloading and ballistics, conducts a suppressed versus unsuppressed shooting comparison to gather data for barrel harmonics testing. The experiment involves meticulous load development across various powder charges and careful observation of group sizes and velocities.

This video details the ongoing quest to replicate the performance of Black Hills' 77gr OTM Mark 262 Mod 1 ammunition. The instructor meticulously tests VihtaVuori N540 powder with 77gr Sierra Match King bullets in .223 Remington, focusing on achieving specific muzzle velocities (2750-2760 fps) and sub-MOA accuracy without pressure signs. The content includes detailed load development, chronograph readings, and group analysis, offering valuable insights for advanced reloaders and precision shooters.