The Firing Line Forums - View Single Post - VihtaVuori (or other) powder sub for Unique, in rifle cases?

reddog81 · April 25, 2024, 01:28 PM

I've used N340 and Unique in 300 Blackout with the same powder charge getting within 20 FPS. I've used Unique and N340 in .357 Mag with the same powder charge getting a 100 FPS difference. Unique gets the higher FPS in each scenario. I have no idea how N340 would perform in a larger case.

April 25, 2024, 01:28 PM	#11
reddog81 Senior Member Join Date: October 16, 2014 Location: Iowa Posts: 1,641	I've used N340 and Unique in 300 Blackout with the same powder charge getting within 20 FPS. I've used Unique and N340 in .357 Mag with the same powder charge getting a 100 FPS difference. Unique gets the higher FPS in each scenario. I have no idea how N340 would perform in a larger case.