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IVER JOHNSON TP 22 BARREL CONTINUED
Encore
Member Posts: 29 ✭✭
Greetings Everyone:
To those of you who sent me emails regarding my most recent post on this Iver Johnson TP 22 Barrel project, I want to thank you for sharing your insight and suggestions.
With the help from a couple of your suggestions I think I finally figured out my problem with the "Failure-To-Fire" situation I had run into the first time I took this little pistol out in the field to test fire.
After alot of agonizing over what could be causing these failures to fire I finally came to the realization that it was to "Light Of A Firing Pin Strike" to ignite the primers and thus fire the bullet.
Apparently when I installed the new Barrel Liner I must have set it just a hair to far forward. This cause the chambered round to set a little to far forward for the Firing Pin to have sufficient impact force to fire the round.
There was no way I could lengthen the existing Firing Pin so I opted to make a new one. I really had no other choice.
Remove the Barrel Liner and start over?? Although it seemed logical and it was suggested by one of your emails, I didn't want to go through the ordeal of removing my newly installed Barrel LIner and just to set it back a little and reinstall it. I had a hard enough time getting it in to begin with.
Oddly enough, I didn't realize that there was never anything wrong with the factory Firing Pin or the way I had aligned the Barrel Liner until I had completely disassembled the slide for further examination. I just assumed that there was something wrong with the firing pin.
It turned out to be a "Head Spacing" problem caused by me installing the Barrel Liner to far forward.
I learned alot though. Albeit, the hard way.
I took it out to the river today for further testing. I took some standard velocity Remington bullets and some Stingers. Both fired and ejected reliably.
The only problem I encountered was that the last cartridge in the magazine would not go into battery unless I fired the gun in rapid fire mode. If I took my time, the last cartridge wouldn't go into battery. I think it may be just a weak magazine spring. I can live with that.
For those of you that my have difficulty believing that I've gotten this little gun to shoot reliably again, I brought along my point and shoot camera with the video recording feature so that I could give you all visual proof that this little gun now actually works.
I uploaded the video to my web-space after viewing it at home on my computer but, when I tried viewing it on my web-browser all I got was a very short sequence of the whole video.
After I take this gun apart one last time for refinishing, I'll put it back together and take it out again for further tests. Hopefully by then I'll get the video problem worked out so that I can show those of you that are interested, this project is finally completed and here's proof that it works.
I now have a really cool little plinking gun.
Oh yea; I forgot to mention; I was shooting at targets about fifteen yards away. The point of impact was about eight to ten inches to the left of where I was aiming but, all bullets struck very close to the same point.
Before I do the refinishing I'll have to drift the rear sight over a little.
I took a few more pictures of these final stages of this project. I'm hoping that they will help you visually understand what I've attempted to describe above.
Those image links are as follows:
http://www.members.cox.net/gestright/firingpin1.jpg
http://www.members.cox.net/gestright/firingpin2.jpg
http://www.members.cox.net/gestright/firingpin3.jpg
http://www.members.cox.net/gestright/firingpin4.jpg
http://www.members.cox.net/gestright/firingpin5.jpg
http://www.members.cox.net/gestright/firingpin6.jpg
http://www.members.cox.net/gestright/firingpin7.jpg
That's it for now. I hope to make one more post after this one to show you all the finished project.
As always, your input is welcome and appreciated.
I'll be back.
Encore
To those of you who sent me emails regarding my most recent post on this Iver Johnson TP 22 Barrel project, I want to thank you for sharing your insight and suggestions.
With the help from a couple of your suggestions I think I finally figured out my problem with the "Failure-To-Fire" situation I had run into the first time I took this little pistol out in the field to test fire.
After alot of agonizing over what could be causing these failures to fire I finally came to the realization that it was to "Light Of A Firing Pin Strike" to ignite the primers and thus fire the bullet.
Apparently when I installed the new Barrel Liner I must have set it just a hair to far forward. This cause the chambered round to set a little to far forward for the Firing Pin to have sufficient impact force to fire the round.
There was no way I could lengthen the existing Firing Pin so I opted to make a new one. I really had no other choice.
Remove the Barrel Liner and start over?? Although it seemed logical and it was suggested by one of your emails, I didn't want to go through the ordeal of removing my newly installed Barrel LIner and just to set it back a little and reinstall it. I had a hard enough time getting it in to begin with.
Oddly enough, I didn't realize that there was never anything wrong with the factory Firing Pin or the way I had aligned the Barrel Liner until I had completely disassembled the slide for further examination. I just assumed that there was something wrong with the firing pin.
It turned out to be a "Head Spacing" problem caused by me installing the Barrel Liner to far forward.
I learned alot though. Albeit, the hard way.
I took it out to the river today for further testing. I took some standard velocity Remington bullets and some Stingers. Both fired and ejected reliably.
The only problem I encountered was that the last cartridge in the magazine would not go into battery unless I fired the gun in rapid fire mode. If I took my time, the last cartridge wouldn't go into battery. I think it may be just a weak magazine spring. I can live with that.
For those of you that my have difficulty believing that I've gotten this little gun to shoot reliably again, I brought along my point and shoot camera with the video recording feature so that I could give you all visual proof that this little gun now actually works.
I uploaded the video to my web-space after viewing it at home on my computer but, when I tried viewing it on my web-browser all I got was a very short sequence of the whole video.
After I take this gun apart one last time for refinishing, I'll put it back together and take it out again for further tests. Hopefully by then I'll get the video problem worked out so that I can show those of you that are interested, this project is finally completed and here's proof that it works.
I now have a really cool little plinking gun.
Oh yea; I forgot to mention; I was shooting at targets about fifteen yards away. The point of impact was about eight to ten inches to the left of where I was aiming but, all bullets struck very close to the same point.
Before I do the refinishing I'll have to drift the rear sight over a little.
I took a few more pictures of these final stages of this project. I'm hoping that they will help you visually understand what I've attempted to describe above.
Those image links are as follows:
http://www.members.cox.net/gestright/firingpin1.jpg
http://www.members.cox.net/gestright/firingpin2.jpg
http://www.members.cox.net/gestright/firingpin3.jpg
http://www.members.cox.net/gestright/firingpin4.jpg
http://www.members.cox.net/gestright/firingpin5.jpg
http://www.members.cox.net/gestright/firingpin6.jpg
http://www.members.cox.net/gestright/firingpin7.jpg
That's it for now. I hope to make one more post after this one to show you all the finished project.
As always, your input is welcome and appreciated.
I'll be back.
Encore
Comments
Good luck drifting the sight, unless you milled a slot and installed another one; they're part of the casting of the slide.
And thanks very much for the congrats and concerns.
I drifted the sight over and everything seems pretty well aligned as of right now. I also applied the new finish.
It looks pretty good in person but, I wasn't able to get a decent photo of it no matter what angle I shot it at. I included a few images anyway just so that you can see the general look I was going for.
I fully intended to let the new finish cure for about a week in our Arizona heat before taking it out and shooting it again. However, this being a long holiday weekend, I took it with me on a one day deer scouting trek in preperation for the upcoming archery deer hunt. (seen two deer and lots of deer sign)
Last time I took the gun out and shot it everything worked nearly flawlessly. This time around I had numerous Failures to Feed and Fire when I used the standard velocity ammo.
As luck would have it I still had a few Stingers left from last time. These higher velocity bullets seem to function with a little more consistency out of this little gun.
I know these little guns are not made for long range shooting but, for some reason I couldn't help plinking out to 15 yards or so.
At seven yard the accuracy is pretty good considering the crappy trigger pull and extremely short barrel/sight radius.
Even with the Stinger bullets I was still getting some Failures to Feed. The only thing different about the gun from this week to last week was the new finish I applied. I put it on pretty thick.
I'm hoping that the cause of these Failures is that the slide is getting to much resistance from the new finish. I hate like hell to have to take it all apart again and start all over.
While I was out in the field, I also took along my little point and shoot camera with the video capture feature. I shot a short length of video that included the Failures to Feed I mentioned above.
I suppose with the right computer software I could edit out those failures and give you all the illusion that I'm some sort of Gifted Do-It-Yourself gunsmith but, I have neither the software nor the inclination to hide my failures with this project.
What makes it a little easier psychologically is the fact that it's not likely I'll ever meet any of the readers of this forum. And besides, without a little failure in our lives, how would we know what success was?
In regard to the video I mentioned; because it's taken with a Point and Shoot camera the file size is massive and the quality is poor. I'm still working on a way to optimize it so that it's presentable on the internet.
I have some software that came with one of my old laptops. It's the I-Movie software that comes with Mac computers. I've never tried it but, I'm hoping that software will help me prep this short video segment of me shooting (or not being able to shoot) this little Iver Johnson pistol I've been working on all this time.
It will probably be my last post on this Iver Johnson topic. I'd really like for you to see that, with the help of some of your input and support, I was able to get this little pistol up and running again.
I was kind of reluctant to include these images because, as I mentioned above, I was unable to take a photograph that looked the way the pistol looks in person. The image of the slide in particular looks as though I accidentally dropped it into a vat of acid. Really crappy but, there it is none the less. The image of the slide is nothing to quit my day job over either.
The links to the three images I made this time around are as follows:
http://www.members.cox.net/upholstryguy/slide.jpg
http://www.members.cox.net/upholstryguy/frame.jpg
http://www.members.cox.net/upholstryguy/finished.jpg
That's it for now.
I'll be back at least one more time.
Encore
This will be my final post on the topic of this Iver Johnson TP 22 Pistol. I believe I've finally gotten it to function Semi-Reliably now. Since the my last post I've given this pistol a good cleaning and oiling and it appears to be functioning smoothly again.
I stated in my previous post that I had taken a short digital video clip of me firing this little pistol just to have some visual proof that this gun was indeed up and running again.
I went out to our local Fry's Electronics store and bought their cheapest video editing software in hopes of converting my short video clip into a format that would play on just about any internet browser.
Since I was unfamiliar with the workings of this cheap software I set everything on "AutoMatic" and converted my 32 megabite video clip into an MPEG format. It shrunk the file size down to 16 megabites and automatically edited out the poorest quality parts of this already short video; while at the same time editing in some sort of flowery 'Fade In."
I was surprised that this software -set on automatic- left any of the video at all since it was all such a crappy quality to begin with.
I've noticed that there are still a number of readers following this Iver Johnson TP 22 topic. I've also wondered if you are reading it just because it happens to appear at the top of the list whenever someone does a search for an Iver Johnson topic?
If you've just stumbled onto this topic while searching for some other Iver johnson topic and for some reason it has peaked your interest, you may want to take a look at the first installment of this particular topic if you haven't already.
Just scroll down the list to the topic "Iver Johnson TP 22 Pistol Barrel." This was my initial inquiry about this project. If you read it in sequence, it might make a little more sense.
The emails and the input given because of this topic has gone a long way toward helping me to complete this project. I now have a nice WORKING little TP 22 Pistol.
Now that I have a little more experience with Barrel Liners and how to install them, (and what to look out for while installing them) I've been toying with the idea of converting an old Winchester Bolt Action 22 LR rifle into the new 17 Mark2 cartridge.
I ruined this rifle when I was in High School but, the action is still good and I now have the technology to fix it.
I'm still just thinking about it though. I have another non-gun-related project that I had to put on the back burner while I worked on this Iver Johnson project. This Non-Gun-Related project is almost completed so, I may be back in this forum a little later. I'll just have to figure out what topic a rechambering/barrel liner project would fall under.
The link to the short video clip I eluded to above is as follows:
http://www.members.cox.net/tmontano/PISTOL.MPG
I hope it plays correctly for any of you that care to take a look.
Thanks again to all of you that helped me through this project.
That's it for now.
Encore has left the building.
Thanks,
James
You can email me at expopo@aol.com