Gunsmithing Firing Pin distance to bolt face when cocked

[brianf]

does the distance from the tip of the firing pin to the bolt face matter?

of course, as long as the firing pin is supported and not wobbling around etc.

thanks

 

[1moaoff]

Maybe I am interpreting your question wrong.
What should matter is that when the firing pin moves forward and impacts the primer that is has enough protrusion to hit the primer but not over Pentwater. Primer location is determined partially by seating depth and partially by case location in the chamber off the shoulder and body

 

[brianf]

Maybe I am interpreting your question wrong.
What should matter is that when the firing pin moves forward and impacts the primer that is has enough protrusion to hit the primer but not over Pentwater. Primer location is determined partially by seating depth and partially by case location in the chamber off the shoulder and body

im tracking but is there a particular distance or clearance from pin to bolt face.

of course it cant protrude at all because it will hit the primer when closing the bolt and possibly to far back it can get filed with crud

pin protrusion is generally accepted .045-.065 with .050 to .060

just wonder if there is a targeted distance in the other direction

thanks

 

[Edds]

If you are talking Model 700, the total amount of pin travel should be about .250".

So, if it is .250" and if your protrusion is .055", the distance from the tip of the pin to the bolt face would be .195".

 

[stangfish]

While reading the dimensions I wondered why the protrusion is so long. I mean at .035 you are on the anvil. Probably at .025.

 

[FisherT&C]

The distance the FP travels is important because if it doesn't build up enough momentum it will cause light strikes. The FP tip must remain in the FP channel when retracted or it will progressively sharpen the tip which will cause primer piercing and a fried FP tip.