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have a 22 coming that has a broken firing pin its a simple one and I've already organized my mate whos a tool maker to make a couple so I have a spare
he asked me to find out what steel and hardness as he is not a gunsmith and never made a firing pin before
Use a Ramset nail as the parent metal donor
its a flat firing pin similar to a ruger 10/22 sort of thing (as far as I understand) so a ramset nail would need to be flattened out?
Yes, grinding flat will do the trick, one of those jobs where a shearing comb sharpener comes in handyQuote:
Originally Posted by rambo-6mmrem
i have made them before out of silver steel i think its called, then hardened and tempered them, worked fine and didn't wear out.
Gauge plate (O1) or spring steel is fine. The pin needs to made so that it does not touch the end of the barrel when it is at its fullest forward extent, otherwise it will create a burr on the chamber if it is dry-fired. The finished pin needs to be tempered to full blue after hardening or it will be brittle and subject to fracture. What make and model is your rifle? I may be able to give you some useful tips if I know exactly which rifle it is for.
Gauge plate is what I'd use.
Tell your mate to Harden then temper back to Blue 300c.
Attachment 60623
Cheers
Pete
@gundoc its a saurio model 700 leaver action made in Argentina I was looking for a project and put a post up on here a couple of months ago and got it of a fallow forum memberQuote:
Originally Posted by gundoc
never herd of saurio before looking them up them mostly make pistols
thought it would be an interesting little piece
heres a pic off the web
Attachment 60638
Rambo, I have never come across one of this make in 45+ years of gunsmithing! It looks very much like a copy of the Marlin Model 57 .22. Hopefully there is enough of the broken pin to make a good copy. My only comments would be to make sure there are no right angled corners on the replacement pin. They should all be radiused to avoid stress cracking in the corners. The nose of the flat firing pin should be tapered at the contact area with the rim of the cartridge until is is about 1mm wide and the edges lightly radiused to ensure positive ignition. I assume it is a hammer-fired system and I would suggest that the back 1/4" of the pin is only drawn back to brown colour to make a harder surface for the hammer to strike. This will prevent the back of the pin from 'mushrooming' from extended use.
Awsome information mate ive been arround gun shows and collectors alot and never seen one you've been a gunsmith a lot longer than ive even been alive so they are certainly not that commonQuote:
Originally Posted by gundoc
Both peices of the old pin are still there apparently so should be a a reasonably simple copy job
The main part of the pin is there but not the striker piece. Action looks different from the Marlin 57. Have searched for ages to find a rifle that it could be a copy of but haven't been successful
Photo from the web
Attachment 60674
That looks a similar to stirling semi autoQuote:
Originally Posted by specweapon
Your rifle is a Savage and was made for many years under various model numbers (6, 87, 187). Gun Parts Corp in the US will have parts available, and their website will show pictures of the pin.Quote:
Originally Posted by specweapon
all good mate didn't arrive today id say it should be here tomorrow...... should be easy enough to guess the striker piece @gundoc? as long as the main shaft of the pin is there to copy so it fits in the bolt properly the actual tip probably doesn't matter too much as long as it hits the rim of the case and ignites the powderQuote:
Originally Posted by specweapon
I am now confused as we seem to be talking about two different firearms here. Where does Specweapon's Savage semi-auto fit into this discussion? The Savage firing pin attaches to a cylindrical hammer and the piece missing has a tab that extends sideways (so a vertical view of the pin is a T shape) which slots into the cylindrical hammer. The Savage firing pin also passes through a slot in the cocking handle to hold it in place. This pin is quite different to the Saurio lever action pin.
@gundoc spec weapon is the guy I brought this rifle off he was telling me what was there and what wasn't
Not sure how the savage comes into it maybe a very similar firing pin... @specweapon?
That photo was from an Argentinian forum, the semi auto firing pin looked identical to the lever action but he semi auto picture was better so I posted that. The saurio looks very similar to the Savage as the rear receiver unscrews to remove everything. May be what the Saurio is based on
@rambo-6mmrem
Here's a link to a parts site for your rifle, unfortunately it in Spanish.
Your firing pin is pictured here.
TIRITO.COM.AR - Repuestos - Carabina Saurio 600/700
Cheers
Pete
Wondering if you could order from them who speeks spanish lol
Maybe liyera could help
Sorry on my phone so couldn't find his correct name
@rambo-6mmremQuote:
Originally Posted by rambo-6mmrem
I think @Ryan_Songhurst and @linyera speak Spanish.
Cheers
Pete
I can flick them an email if you want? I'm not sure I would be keen on giving credit card details to Argies though...Quote:
Originally Posted by P38
Ah! I comprendo. The parts diagram shows the shape of the rear of the pin where it slots into the cylindrical hammer. An interesting design combining two different rifles from two different US manufacturers, then made in South America!
yeah mate if you could ask them if they can ship here and what it would costQuote:
Originally Posted by Ryan_Songhurst
I think ill stay with getting one made I'm sure one of my 5 or 6 mates that are tool makers/fitterturners/cnc operators/gunsmiths should be able to sort it
but its good to have a plan b
@Ryan_SonghurstQuote:
Originally Posted by Ryan_Songhurst
That's what prezzie cards are made for. :thumbsup:
Cheers
Pete
Cool will email them now, should have an answer for you by tommorow morning as the day is just starting there now :)
Cheers mateQuote:
Originally Posted by Ryan_Songhurst
PayPal is even better than a prezi card as you get the $ back for a non delivery
Got an email back from them and said they won't ship outside of South America, so that's that option out, unless you wanted to have them send it to my Mrs old man in Montevideo and then he can send it to me?
cool @Ryan_Songhurst will contact you if I get stuck thanks for the offer making one shouldn't be hard though
here it is
Attachment 61047Attachment 61048Attachment 61049
firing pin out the rifle
Attachment 61050Attachment 61051Attachment 61052
one off the website as you can see its missing a bit at the rear
Attachment 61053
