Need more pin fall

[DickE]

As stated above. Remington 700 S.A. Previously worked on by another smith who has pasted away. Only .200-.210 pin fall, slight dent in primer and no ignition.
How do you get more pin fall on this? I have some ideas, but asking others how they do it.

 

[AlNyhus]

Pictures of everything would be a start...pin assy in and out of the bolt, complete bolt, cocking cam, trigger connector, pin tip, does the pin tip fit the pin hole, etc.

These can be hard to figure w/o having it in hand. -Al

 

[gme]

depends on what he did, if the cocking piece was ground back too much replacing it may be all that's needed, if you have another firing pin assembly try installing it and see if it makes a difference (assuming the tip is the same diameter)

 

[Alex Wheeler]

Common way of improperly timing an action. Most likely just cut the cocking piece. A new one should fix it. But like Al said, pictures would help. Some Timney triggers also give up a lot of pin fall. Check out your spring too. Even though .210" is definitely not enough, I would still expect a bang.

 

[DickE]

 

[DickE]

Yup, Timney Trigger installed. Even .200" pin fall might be an exageration.

 

[Alex Wheeler]

Firing pin assembly needs fitting to that bolt. Cocking piece is fine.

 

[DickE]

Reviewing my own 700 s.a. removed bolt, but my firing pin has been bushed, and this one was not


.

Ah ha, quite a bit of difference in the length of the sear, yes I do believe it has been cut back. I have ordered two std cocking pieces from PTG.

 

[Edd]

Ah ha, quite a bit of difference in the length of the sear, yes I do believe it has been cut back. I have ordered two std cocking pieces from PTG.

Did you miss Alex's comment?

 

[jackieschmidt]

Just curious, Why would anybody bring back a cocking piece? They are case hardenned so they last forever, and besides, anything you do to it can only shorten the firing pin travel.

also, the ‘Smith probably lightened up the firing pin pressure as well, in the name of “smooth operation”,
A good rule of thumb is to follow Kebly’s recommendations. They, and Remington, got it right.

 

[Edd]

Just curious, Why would anybody bring back a cocking piece? They are case hardenned so they last forever, and besides, anything you do to it can only shorten the firing pin travel.

I have had cocking pieces modified because there was too much pin travel.

 

[L.Sherm]

PTG actually does or used to make a cocking piece .030 shorter

 

[Edd]

I have one of those PTG pieces.

Carlsbad has also offered to shorten one for me.

 

[WSnyder]

Firing pin assembly needs fitting to that bolt.

This ^^^

 

[DickE]

After further examination, I do believe the cocking piece is a .030 short PTG. Rounded edges with no indication of grinding. Firing pin looked like a speedlock system, with not enough pin protrusion, replaced. Fires on a primer only case now, but will replace the spring, cocking piece, firing pin.

Thanks for the tips, and ideas, helped me work this out.

This ^^^

How would you do this, other than cutting down the firing pin abutment? I want to learn something here.

 

[Edd]

After further examination, I do believe the cocking piece is a .030 short PTG. Rounded edges with no indication of grinding. Firing pin looked like a speedlock system, with not enough pin protrusion, replaced. Fires on a primer only case now, but will replace the spring, cocking piece, firing pin.

Thanks for the tips, and ideas, helped me work this out.

How would you do this, other than cutting down the firing pin abutment? I want to learn something here.

I decreased that gap in one by turning the firing pin 90 degrees and drilling a new hole.

 

[Pyscodog]

Man its amazing what you can learn with a few pictures and a little reading. You guys are great!!!

 

[DickE]

This ^^^

Did you miss Alex's comment?

No I didn't. but I like to keep a couple of spares on hand, if to compare if nothing else. As with the springs and firing pins.

 

[DickE]

Used the cocking piece as is, believe it to be a PTG .030" shortened cocking piece. Replaced the f.p., with a PTG standard f.p. without the flutes. Lathe cut firing pin abutment back .035" along with some minor tweaking. Now have .245" pin fall, .058" pin protrusion. All thanks to the members who have helped me along the way on this project. I have learned something which is why I come to this web site. Works good now.
Thank you very much(you know who you are).

 

[Stumpy1]

Just love a happy ending...