New grendel, wont fire

[Deezil]

After looking at the pics, I've had the same issue before. May sound silly but I had the wrong buffer spring. I put a carbine spring in a rifle length tube. Would not cycle the bolt hard enough to push the bolt forward all the way. I could get the forward assist to set the bolt. It would fire and jam almost every shot. Finally thought to swap the spring and it fixed it. Cheap easy fix if that's your problem. Good luck.

if I really slam the bolt forward, I need a hammer to eject the shell, something really sticks. I dont think its a spring. I wish these werent so rare, if someone near me had different ammo or something I can try Id be ecstatic.