Anschütz 1450 Firing pin issues

[martin]

please help,

Seems the pin is not hitting inside the rim, more kinda on the outside edge...
100% misfires.
I cleaned the bolt, ( i think its assembled correctly)

Something specific i need to look out for or adjust or set ?

Regards

[Oldbloke]

Any pics would help

[martin]

Tried to load some pics, nothing seems broken .. maybe some wear ...

Hopefully an assembly error

[Oldbloke]

Pic of the case not too clear. I assume dent is the shiny dot. I notice the firing pin is pointed. The 3 rimfires Ive had were all chisel shaped. I wonder if that is normal/original?

[rc42]

An in-focus closeup of the dented rim on the case and one of the end of the firing pin would be useful.
Check that a small corner or other piece hasn't broken off the firing pin, ideally remove it from the bolt for closer inspection.

I've also never seen a rimfire that has a round or pointed firing pin tip, they have always been very clearly chisel shaped and probably about 5 times longer then they are wide.

A new firing pin is probably what you need.

[Diamond Jim]

An in-focus closeup of the dented rim on the case and one of the end of the firing pin would be useful.
Check that a small corner or other piece hasn't broken off the firing pin, ideally remove it from the bolt for closer inspection.

I've also never seen a rimfire that has a round or pointed firing pin tip, they have always been very clearly chisel shaped and probably about 5 times longer then they are wide.

A new firing pin is probably what you need.

From what I can see online, the Annie firing pin is supposed to be rounded and not chisel shaped so yours seems normal.

A possibility is a build-up of crud inside the bolt that is stopping the pin from moving forward sufficiently. I know you say you've cleaned the bolt but have you stripped it and got inside with a bronze brush and solvent? Just a thought - apologies if you've already covered that.

Did this arise before or after cleaning? Double check assembly if it was working before cleaning/dis-assembly.

Have a look at a dedicated Anschutz forum - my go to is Rimfire Central - I bet someone there has had/fixed this before.

[martin]

Thank you,

I am trying to find a way (without breaking something) to disassemble the back part of the bolt... seems i need a special tool ..

[marksman]

you need to check firing pin protrusion by uncocking the bolt
then if there is not enough find out why from there

14.1 Uncocking the bolt
a Bolt head
b Central part of bolt with bolt handle
c Rear part of bolt
X Pull the rear part of the bolt [c] against the spring force out of the
detent in the opposite direction to the middle section with the bolt
handle [b].
X Twist the rear part of the bolt [c] against the middle section with the
bolt handle [b] until the bolt is uncocked.

[snag]

Have you tried soaking the bolt in 2 stroke petrol? You might just have a gummed up spring.

[martin]

I have soaked and sprayed with carb cleaner.
Thanks with the step by step dismantling process... but i am not winning..
See pics attached

Do i need to remove the "pin" market with purple ?

[marksman]

it looks to me that the rear of the bolt looks like it is doing what it is supposed to but what is it like uncocked fully assembled
does the firing pin protrude and does the rear seat down uncocked the same

[martin]

the firing pin does protrude .. i don't know what is "enough" or how to adjust it

Look at the second pic, looks like the one extractor claw is chipped or rounded at the end compared to the other.... is this correct ?

however the round does sit firmly on the bolt face ... but maybe that is the problem .... if the round "moves forward" when firing ??

[marksman]

the difference in the ejectors is so it extracts and can flick the case away, its normal

the firing pin does look like its protruding enough although l'm not exactly sure how far it should protrude

the protrusion is usually around .055"-.035"

going by the little bit of carbon seen on the bolt head l would say it was because of some crud inside the bolt head that may have been dislodged
when cleaning the inside a spray is not enough you need to clean it with carby cleaner and a small brush ect...
try it again and if it doesn't work still you may be best to see a smith

[rc42]

The carbon marks on the bolt face seem to suggest that it's not properly aligned with the cartridge case which would explain the firing pin catching the outside edge of the case rather than inside the rim.
Do you have something like a tiny bead of blu-tak that you could put on the bolt face and then close it against a chambered cartridge and then open it again to see how the alignment looks.
Maybe you have a problem with wear or damage on the bolt or action, the firing pin certainly looks to be protruding enough.
It could also be a head space issue if the bolt isn't closing close enough to the back of the cartridge.

[Oldbloke]

The carbon marks on the bolt face seem to suggest that it's not properly aligned with the cartridge case which would explain the firing pin catching the outside edge of the case rather than inside the rim.
Do you have something like a tiny bead of blu-tak that you could put on the bolt face and then close it against a chambered cartridge and then open it again to see how the alignment looks.
Maybe you have a problem with wear or damage on the bolt or action, the firing pin certainly looks to be protruding enough.
It could also be a head space issue if the bolt isn't closing close enough to the back of the cartridge.

That's my thinking. If the firing pin shape is normal, why is it only impacting the very edge of a the case rim? Must be an alignment issue.

[martin]

Thank you gentleman, we have success.

I cleaned all again with brush and carb cleaner trying to flush the spring section too.

Much better strike by firing pin

Much appreciated all the patients and advice

[marksman]

thats the go

for it to be an alignment issue, the firing pin hole as well as the internal bolt head would have to be completely knackered

[Oldbloke]

thats the go

for it to be an alignment issue, the firing pin hole as well as the internal bolt head would have to be completely knackered

Agree

Bolt still looks grubby though

[Diamond Jim]

That was my original diagnosis. It's amazing how a tiny piece of crud can upset the operation of a precision mechanism. Annies have a great reputation for precision but that comes with a requirement to keep them squeaky clean. Rimfire ammo can be dirty and build up in unexpected places.

[TassieTiger]

Congrats on resolving the issue -
I’ve learned several things following this thread myself.

[Oldbloke]

Congrats on resolving the issue -
I’ve learned several things following this thread myself.

Same here

[straightshooter]

Thank you gentleman, we have success.

I cleaned all again with brush and carb cleaner trying to flush the spring section too.

Much better strike by firing pin

Much appreciated all the patients and advice

Don't celebrate too soon.
I am surprised that nobody commented about the inertia firing pin which is a design feature omitted from nearly all modern bolt action firearms.
Chances are the real issue is a weakened mainspring inside the rear portion of the bolt.
If some of your cleaning solvent found it's way inside the rear part of the bolt all it has done is softened some oxidised oil or congealed grease inside, only for the problem to return when the solvent eventually evaporates.
Better for you to find out how to dismantle that part of the bolt, clean inside and do something about the mainspring.
In the first instance I would try to stretch the mainspring so as to strengthen the firing pin blow. If I wasn't able to stretch it so as to result in permanent lengthening then a relaxed mainspring is unlikely to be the problem and detailed cleaning and the lightest possible lubrication would be in order.

[Wm.Traynor]

This is a Really Interesting topic

[animalpest]

I recently had this issue with a Annie 22 mag. Had 100% misfired. When I disassemble and looked at it there seemed no reason. Reassembled and it worked fine.

The problem was that when assembling, the firing pin is not aligned properly. If it doesn't work, simply take the front portion of the bolt off, turn the firing pin and try again