It is a Live Free Armory battle rifle. I've tried Federal Gold Match, Remington Premier, Barnes TTSX, Hornady Super performance. I think I have figured it out. The barrel had significant amounts of copper in it, but only in a few spots. However, it was a lot. I have only put maybe 100 rounds total through the gun, as I have only had it for just over two months.Specific parts used , or brand of Rifle ?
Ammo tried ?