Freedom munitions - Freedom Munitions .300 Blackout 125 Grain Full Metal Jacket Brass Rifle Ammunition

I had one jam but the big problem was a blown primer being overcharged. Not good, made a ring indentation around the firing pin hole and the primer got stuck between the Bcg and inside wall of my upper. I had serious trouble getting the bolt to move. It left a decent gouge inside the upper. I have gotten other caliber ammo from freedom munitions they seem good but I can not recommend these 300 black out ones. Im tossing this box and the one I got prior. Never any issues with other ammo brands in 300 black out. I will try out my other brands of ammo this weekend hopefully my upper isn’t jacked up.