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Fix a Swing Bolt

Posted: Mon Jun 03, 2013 7:18 am
by hitchphil
Whos a good egg to fix the broken firing pin in a Swing Mk4 Bolt? Tried a couple of smiths & they dont have any parts.

Tip has broken off.........duno how, just goes ping (good practice for the misfire procedure for one of our novices though!)

:cheers:

Re: Fix a Swing Bolt

Posted: Mon Jun 03, 2013 7:43 am
by StanDeasy
A guy in our club makes them, I will ask him if he has any in stock.

SD

Re: Fix a Swing Bolt

Posted: Mon Jun 03, 2013 9:01 am
by StanDeasy
Have checked, he has none in stock.

Fultons usually have them apparently.

SD

Re: Fix a Swing Bolt

Posted: Mon Jun 03, 2013 10:12 am
by mag41uk
What about HPS?
Tony

Re: Fix a Swing Bolt

Posted: Mon Jun 03, 2013 12:05 pm
by IainWR
I have seen the job done (on my gun) in the field in 10 minutes with a medium screwdriver and a small allen key - nothing else. The critical bit is indeed having the spare firing pin, which can be turned on a lathe but needs appropriate heat treating - so you need a good machinist if you can't find a supplier. I have a spare in my toolkit, and I'm not selling it!

Iain

Re: Fix a Swing Bolt

Posted: Mon Jun 03, 2013 1:48 pm
by ovenpaa
If you have a picture of the old one post it up please.

Re: Fix a Swing Bolt

Posted: Mon Jun 03, 2013 4:59 pm
by Hauptman
bought one in Fultons last year.....£40

H/man

Re: Fix a Swing Bolt

Posted: Mon Jun 03, 2013 6:06 pm
by hitchphil
Thanks all - waiting on another smith to advise stock. also looking at making one ..........

Re: Fix a Swing Bolt

Posted: Mon Jun 03, 2013 6:14 pm
by ovenpaa
I assume the pin is held in place by a grub screw at the back or does it screw in as well? It does not look to be too much of a problem to build a new one.

Re: Fix a Swing Bolt

Posted: Mon Jun 03, 2013 7:01 pm
by hitchphil
ovenpaa wrote:I assume the pin is held in place by a grub screw at the back or does it screw in as well? It does not look to be too much of a problem to build a new one.
Back grub is a tad mauled & a small imperal size, its also grub screwed on the front collar but smaller than any allen key I have, that un locks it & that collar is on a thread, so tp make a pin its turn to 3 diameters, thread, chamfer, grind end, part off & heat treat.

Teh fracture face is circular fatigue with spiral beach marks to a pip in the centre. If i can get a magnified pic of that will post it us metallurgists will be enthralled ! :roll:

Might buy one.... mic it up then turn one out too.

£40 Fulrons seems most reasonable but also asked HPS.