firing pin

[Texas Jack Black]

 What are the benefits of installing a extended firing pin in our 66 or 73  SASS rifles?

 

 

Thank You

[Garrison Joe, SASS #60708]

More reliable firing of the cartridges.  Often needed with an action job where springs get lightened.  Or with hard-to-ignite primers.  Or if large headspace has developed or occurred due to a new set of toggles that don't quite fill the bill.

 

If you are getting 100% ignition now, probably don't need one.  GJ

[Texas Jack Black]

33 minutes ago, Garrison Joe, SASS #60708 said:

More reliable firing of the cartridges.  Often needed with an action job where springs get lightened.  Or with hard-to-ignite primers.  Or if large headspace has developed or occurred due to a new set of toggles that don't quite fill the bill.

 

If you are getting 100% ignition now, probably don't need one.  GJ

 Thank You

[Colorado Coffinmaker]

Just an FYI

 

The "Extended Firing Pin" dates back to a period 20 or so years ago.  The problem was the firing pin is "rebounding" and the combination of a heavy return spring and a short contact head contributed to fail to fire.  The after-market responded with "Extended Firing Pins" that essentially had longer (deeper) contact heads that stayed in contact with the extension rod thru ignition.  This was important for guns with light return springs (Very Common) and lightened Main Springs (Very Common).  Uberti then copied the longer contact head for the Toggle Link Rifles.  Current production Uberti already have extended firing pins but also have way heavy return springs.  With a reduced Main Spring, it becomes important to reduce the firing pin return spring to compensate.  

[Texas Jack Black]

Thank You

[Texas Jack Black]

14 minutes ago, Colorado Coffinmaker said:

Just an FYI

 

The "Extended Firing Pin" dates back to a period 20 or so years ago.  The problem was the firing pin is "rebounding" and the combination of a heavy return spring and a short contact head contributed to fail to fire.  The after-market responded with "Extended Firing Pins" that essentially had longer (deeper) contact heads that stayed in contact with the extension rod thru ignition.  This was important for guns with light return springs (Very Common) and lightened Main Springs (Very Common).  Uberti then copied the longer contact head for the Toggle Link Rifles.  Current production Uberti already have extended firing pins but also have way heavy return springs.  With a reduced Main Spring, it becomes important to reduce the firing pin return spring to compensate.  

 Current production I have a 66 serial number starts with a W .would that have the newer extended pin?

[Colorado Coffinmaker]

Dunno off the top of my head.  I'm 1000 miles away from home so can't give you the specific measurement.  With Uberti, the serial number is not always a good indicator.  Uberti made changes and still used "old" parts until they ran out.

[Colorado Coffinmaker]

If, when dropping the lever, the nose of the firing pin is flush with the face of the Breach Block (Bolt) or slightly inside the breach block,  and with the extension rod forward you get forty thou firing pin extension, your good.

 

Also, optimum Head Space is .004 and anything over .008 is flirting with fail to fire.

[Abilene Slim SASS 81783]

Adding on, it’s possible to have a FP that’s too long. I replaced one that was too short with a longer one. It was so long that it would dent the primer just by gently closing the action. I found another one that split the difference between the two. Sometimes they need some fitting. 

[Texas Jack Black]

Thank you all