Ruger American Hard Bolt Lift

[nettereo16]

I have a Ruger American Predator Gen 1 308 that has really hard bolt lift. Haven't shot this rifle much (~200 rounds) as it's a backup/loaner.

Factory ammo only - Federal Fusion, PPU both had this issue
It's only been shot suppressed, not sure if that adds more pressure to cause this.

I'm wondering if there is a burr/toolmark in the chamber that, when the brass expands, it becomes difficult to extract. I've attached a video where even a spent case is loaded into the chamber and becomes hard to extract. Any ideas??

 

[Tx_6UM]

Have you shot it without the suppressor? Mine in 6.5 has stiff bolt lift only when shooting suppressed.

 

[nettereo16]

Have you shot it without the suppressor? Mine in 6.5 has stiff bolt lift only when shooting suppressed.

I haven't yet but I guess I should try. Though I only bought this rifle to be able to shoot suppressed as it came with a 18" threaded barrel. It shoots great otherwise.