Tikka T3X Failure to Fire

[Rugger7622]

The FTF is not caused by a tight chamber. You can also get an idea of the chamber length by covering the case head of a factory round with masking tape to see if the bolt will close on it. Usually they will but it will be tight. The base of the head not the sides.

Do you mean scotch tape or actual yellow masking tape?

 

[Dan Carey]

White/tan masking tape. If you actually have a tight chamber that a go gauge will not close on then a factory round will be hard to close on too. Resized cases are not accurate enough. Put the tape on the case head then trim the sides with a sharp blade.

 

[Rugger7622]

I shot 2 boxes of factory and no issues closing the bolt at all

 

[Dan Carey]

On your gauges, what does it say on the gauge?

 

[Dan Carey]

Pull the firing pin from the bolt and clean it. There is a shoulder on the pin that contacts the bolt body, any dirt between the two can cause a light primer strike

 

[Rugger7622]

I pulled the bolt/spring and clean with brake clean, prior to my last range session where I had 3 FTF’s. Here are pics of the gauge

 

[Dan Carey]

Gauge looks OK. Firing pin protrusion should be .055 min. I'm sure Tikka has a spec on that. You can check that with a mike or a set of calipers.