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Bolt hold-open doesn’t work

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XP001 View Drop Down
Callahan's Auto Mag
Callahan's Auto Mag


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Post Options Post Options   Thanks (0) Thanks(0)   Quote XP001 Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 3:08am
Can you give a pic wide out and then I understand this ZOOMED in pic better can't vision what it is but can say there is a chewed up steel lip ledge in it. Would like to see more on how it is positioned. 
Either way it looks like you have something to have worked on. Does it look like regular steel or is it stainless? Anybody? Easy job if just steel, a little weld build up then grind it right and BAM your back in business.
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Pantera Mike View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pantera Mike Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 3:35am
Jason,

Thanks very much for that. The thread mentions Maynard’s tool, but the link is dead. Buying an optimized tool is preferable to having to make one. Do you (or anybody) have a good link or contact info?

BTW FWIW I think this snap ring has a lot of life left in it. It took quite a lot of work to get it back on and I don’t have a prayer of getting it off again, I don’t think. It will be interesting to see if it withstands the violence of recoil though. 
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Pantera Mike View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pantera Mike Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 5:27am
Originally posted by XP001 XP001 wrote:

Can you give a pic wide out and then I understand this ZOOMED in pic better can't vision what it is but can say there is a chewed up steel lip ledge in it. Would like to see more on how it is positioned. 
Either way it looks like you have something to have worked on. Does it look like regular steel or is it stainless? Anybody? Easy job if just steel, a little weld build up then grind it right and BAM your back in business.

You’re right. My photo was pretty stupid. I finally switched from iPad to iPhone camera with better light and now all should be clear. 

Here is a wide shot from above into the magazine well:





And a close-up of the portion of the holdopen that engages the magazine. The bottom surface was mangled when I got it, so I figured I had little to lose. The top surface got mangled when the heat shrink tubing slipped off my vice grips. But it has no interface with anything so that damage is just cosmetic. 






This piece, like everything else (?) is super-hard stainless steel. I suppose I should just suck it up and buy a new one. But then I would need to find somebody qualified to install it....?

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Pantera Mike View Drop Down
Callahan's Auto Mag
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pantera Mike Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 5:42am
By way of contrast, here is the same piece on my other Auto Mag:



Far from perfect, but infinitely better than my new one. FWIW the bolt always locks back with all magazines with this one when manually manipulating it, but occasionally fails to hold open when firing....
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XP001 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote XP001 Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 2:35pm
If it was super hard stainless how did you manage the chew it up so much? If it really is hardened don't try to bend that lip as if will just crack at the bend. I don't have of these now otherwise I would check mine, still no confirmation about it being stainless which I think is also harder then regular steel. Sure looks like a normal piece of steel to me. Amazed a lot of others haven't helped here but maybe they are " frozen" from the cold.
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XP001 View Drop Down
Callahan's Auto Mag
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Post Options Post Options   Thanks (0) Thanks(0)   Quote XP001 Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 2:39pm
Well  I couldn't figure it out until I went back at looked at your early pics and the vision is now clear what you are showing. All the pics now make sense to me.
I would take that lever off, clean up the bottom side of that lip, weld a thin strip of metal to that bottom side of lip than clean up weld and be done. Adding a thin piece would allow more upward pressure of your mag pin to lock it. Just don't use too thick of a piece or if your good at welding just build up a weld on that lip and grind flat. Done!

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Pantera Mike View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Pantera Mike Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 4:55pm
...or, just buy a new one. Tongue

I don’t trust myself to take it apart, nor can I weld. So if I was to pay to undertake repairs it would probably be cheaper to just replace the obviously worn part. 

I wish I had the talent to follow your advice for it would probably work!
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BEEMER1 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BEEMER1 Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 5:03pm
I have found it is best to have dedicated mags for each gun.

With that in mind, I would take a side cutters and gently pull the mag pin out a tiny bit until it works and call it good.  I think that there is enough metal there for that to work.

I have done several that way.  You can also pull them completely out and add a little blue lok-tite and reset then to where they work in your 357.
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XP001 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote XP001 Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 5:45pm
Maybe if he marks on picture where the pin should be hitting that it's not I would understand what issue is better or did I just misunderstand the problem area. Well hope it states where the pin issue is. Pin going passed the lever tab because tab is not inward enough or pin under tab but not pushing it up because tab underside is worn. Either way a welded piece would work but easy fix to move tab outward or replace with longer pin but not too long or it starts jamming up in the pin track inside mag well. 
So let's us know what issue is caused by, pin bypassing tab or not enough bottom of tab to move up when pin is under it.
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Luvz2Shoot View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Luvz2Shoot Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jan 2019 at 6:00pm
Maybe contact Patrick and see if he has a hold-open.  Just because he doesn't have Auto Mag's rolling out their doors, doesn't mean he doesn't have parts.  He bought everything from the Sanford's.  Tools, parts, pieces, etc.  Just because they aren't listed on the webpage doesn't mean he doesn't have any.
 
Looks as if the follower pin isn't positively engaging that lip, and possibly just "rolling" past it.  As Beemer mentioned, maybe tap your follower pin out a little so it will engage the lip more.  As you know, be careful not to go too far out with it as it may not have enough strength to stay in place during shooting.
 
Good picts!  Thumbs Up
 
Good luck!
If you were happy and you knew it, would you clap your hands?
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