Shilen DGA Bolt Disassembly

S

sam

New member
Hi Folks,

New to this forum. I shoot a custom built single feed f-class Shilen .308 DGA. Old, yes, but I think its a great firearm, unfortunately I still find it had gathering any info about the rifle especially the age of it. I came across my first issue in 5years with the rifle yesterday and was looking for any knowledge on the subject. When loading a round yesterday I noticed the bolt would not lock down, its travels halfway down and that's it. Also I noticed that the firing pin does not retract when the bolt is cocked - see picture -, I can however push the pin in manually. As the bolt seems to be one piece doses anyone know how to take the bolt apart as I'm guessing a firing pin\spring issue although I can't figure out why it won't fully lock down? What common parts if any, would this bolt have with any other maker?

Any help would be great.
Sam
 

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Typically you hold the firing pin to the rear and unscrew the bolt shroud. Look up Rem 700 bolt disassembly if that doesn't make sense - I'm sure yours comes apart the same way. I suspect a good cleaning will "fix" it.

GsT
 
GeneT said:
Typically you hold the firing pin to the rear and unscrew the bolt shroud. Look up Rem 700 bolt disassembly if that doesn't make sense - I'm sure yours comes apart the same way. I suspect a good cleaning will "fix" it.

GsT
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Well the advice worked (never mind a couple of skinned knuckles lol). So the pin is broken, the 700 Remington name is used a lot, would that pin be a replacement or is it similar but different sort of thing?
 

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Sam, the Shilen firing pins are different than the Remington's. On the Shilen, the cocking piece threads on to the firing pin. The good thing is that you have the old pin...hopefully a sharp machinist can duplicate it for you.
 
Al Nyhus said:
Sam, the Shilen firing pins are different than the Remington's. On the Shilen, the cocking piece threads on to the firing pin. The good thing is that you have the old pin...hopefully a sharp machinist can duplicate it for you.
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That's good information thanks. Hopefully I will get it sorted, it shoots so good I don't really want to change it.
 
Sam,

It may be possible for a handy 'smith to simply fabricate a new front end on the original pin body. I have made several bolts for myself, and made the firing pin that way. The portion in front of the shoulder has the tip part threaded and Loctited into the main body. It is over size at that point and then has the finish dimensions machined into it. I made that front portion out of a grade 8 machine screw.

FWIW
Steve Kostanich
 
Steve Kostanich said:
Sam,

It may be possible for a handy 'smith to simply fabricate a new front end on the original pin body. I have made several bolts for myself, and made the firing pin that way. The portion in front of the shoulder has the tip part threaded and Loctited into the main body. It is over size at that point and then has the finish dimensions machined into it. I made that front portion out of a grade 8 machine screw.

FWIW
Steve Kostanich
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That's interesting thanks for that. It would make life easier if that works. I can take the info with me, I know a couple of machine guys, I'll have to see if they would like a challenge.
 
Reminds me of a BAT I used to have. I think a BAT bolt tool would work to get the pin assembly out of the bolt to avoid the busted knuckles. The pin is likely threaded into the cocking piece, the rectangular piece. There are likely tools I am un aware of the dismantle it. You'll likely find a set screw holding the cocking piece to the pin in place once the pin fall is set.
 
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