New Rem 700 Light Strikes?

[joe777]

Got a new Rem 700 Long Range in 308. Really liking the gun so far, but I'm having issues with some rounds not firing. Been searching a lot, but I can't find good info on where to start fixing/how to diagnose what exactly is the problem.

Happens with factory AAC 175, 168 and Winchester M80 LC brass
Averaging 2-3+ fail to fire per box of 20
Already removed and cleaned the firing pin/spring assembly
Loaded the rounds that didn't go off 2-3 times and they still didn't fire

Fail to fire on top, fired rounds on bottom. Maybe some flattening and slight cratering?

Bolt face has brass marks and what appears to be slight brass shavings?

I'm wondering if the brass shavings are simply getting into the firing pin and impeding it's travel, or if I have some other issue like bad firing pin dimesions or over pressure or headspace.

Do I just buy a new firing pin or spring or see if Rem will send me another bolt assembly?

Thanks for any help. Here is the gun:

 

[diggler1833]

Could be a couple of things.

I would start by checking firing pin protrusion. I ran into this issue once with a Bergara of mine.

I'd also measure your fired brass vs the duds at the sholder datum line to see if you have excessive headspace.

 

[6brshooter]

Factory trigger? I've saw overtravel set too short and caused sporadic firing pin drag. Fired primers look normal for a factory 700, they all exhibit that crater look. Check fp protrusion as mentioned.

 

[joe777]

Factory trigger. It's the new Timney non adjustable they are using.

 

[joe777]

Update: Shot 100 rounds yesterday with only 2 light strikes. One fired after cocking the bolt again. AAC 178gr gave me no light strikes but a couple hard bolt lifts and one locked up bolt that I had to tap with a hammer to open, not sure if its related.

Problem seems to be getting better.

Planning to keep running it as-is because she's shooting damn well with both AAC 175 SMK and 168 OTM