Savage firing pin travel

[chet]

I have a few Savage rifles, i have one apart and might build off of it, i am curious what is the proper firing pin lift when cocked, what i am asking when the firing pin is in the fired mode, how much does the firing pin need to be lifted to have no misfires or light pin hits,, i know on this action it is being over cocked.
Chet

 

[Rustystud]

My suggestion is have the firing pin stop adjusted for .055"-.060" protrusion of the bolt head. Have the cocking piece adjusted so the cocking piece pin when in the fired position is .080" from the bottom of the cocking ramp. If the cocking piece in bottoms out first it will do two things, one cause your rifle to shoot fliers, and two after repeated strikes it will crack your bolt body. Just my 2 cents worth.

 

[chet]

My suggestion is have the firing pin stop adjusted for .055"-.060" protrusion of the bolt head. Have the cocking piece adjusted so the cocking piece pin when in the fired position is .080" from the bottom of the cocking ramp. If the cocking piece in bottoms out first it will do two things, one cause your rifle to shoot fliers, and two after repeated strikes it will crack your bolt body. Just my 2 cents worth.

hi Rustystud
the cocking pc does not bottom out on the bottom of the ramp, rather than set the clearance at .080, would it not be more of an advantage to grind the top of the ramp .080 deeper where the cocking pc is in the cocked position, then blend the ramp, thus the angle change would yield an easier opening bolt

Chet

 

[Ggmac]

At what point would you stop grinding ? When the pin bottoms out on the head retaking cross pin ? I've seen more than a few screwed up bolt bodies and broken pins with bolts locked in the receiver because of cracked / broken pins . Buy the kit if you want to lighten bolt lift

 

[chet]

My suggestion is have the firing pin stop adjusted for .055"-.060" protrusion of the bolt head. Have the cocking piece adjusted so the cocking piece pin when in the fired position is .080" from the bottom of the cocking ramp. If the cocking piece in bottoms out first it will do two things, one cause your rifle to shoot fliers, and two after repeated strikes it will crack your bolt body. Just my 2 cents worth.

hi rustystud

i understand what you are saying, but i am trying to find the actual lift from fired to cocked position, a few years ago this was posted by Fred at SSS. just can't seem to dig it up.

Chet

 

[ShaunBrady]

hi rustystud

i understand what you are saying, but i am trying to find the actual lift from fired to cocked position, a few years ago this was posted by Fred at SSS. just can't seem to dig it up.

Chet

I have a bolt assembly screw with a hole drilled in it that is used for making those measurements. The newer one piece firing pin Savages use a screw with a through hole and the firing pin position can be measured directly.

The numbers you want, to the accuracy you need, for the adjustment you'd like to make are going to be action, bolt body, and trigger specific.

Another Savage bolt tool that can be used to make that measuring screw tool is a threaded bushing to hold the screw in a lathe. I use it to shorten the screw by whatever amount I mill off the back of the bolt body to adjust the primary extraction. I do a combination of facing the screw and cutting a slip fit shoulder that the cocking piece sleeve aligns and rotates on.

 

[chet]

I have a bolt assembly screw with a hole drilled in it that is used for making those measurements. The newer one piece firing pin Savages use a screw with a through hole and the firing pin position can be measured directly.

The numbers you want, to the accuracy you need, for the adjustment you'd like to make are going to be action, bolt body, and trigger specific.

Another Savage bolt tool that can be used to make that measuring screw tool is a threaded bushing to hold the screw in a lathe. I use it to shorten the screw by whatever amount I mill off the back of the bolt body to adjust the primary extraction. I do a combination of facing the screw and cutting a slip fit shoulder that the cocking piece sleeve aligns and rotates on.

HI Shaun

I can see it being trigger specific, i am curious next time you have a savage bolt apart what you come up with as for dimensions, measure from the firing pin end of the bolt body to the bottom of the cocking ramp and measure from the bottom of the bolt body to the top of the ramp where the cocking pc sets in the cocked position. so if you have .020 clearance between the bottom of ramp and the cocking pc, then then .020 minus the the number will give you the actual lift number i am trying to find. i do know when you cut the detent area deeper as you do this i notice the head of the cocking pc will prematurely advance the trigger bar in the right side of the action, i had to grind that tang to get the trigger timing right again.

Chet

 

[CharlieNC]

On a couple of Savages I have seen the firing pin protrusion change over time, becoming excessive and piercing primers. Also on one the spring required replacement as it became weak and resulted in many misfires after a couple of years use.