Jennings .22 chamber problems


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w_houle
October 19, 2009, 10:07 AM
Through my efforts, and too much of a good thing: I destroyed the barrel on my J22. I bought one and installed it on my pistol.
The problem that probably plagued the old pistol is now in mine, that being the firing pin peened the barrel and causes the fired cartridge to be very difficult to remove from the chamber. What would be the best way to clean up the chamber of this burr?

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foghornl
October 19, 2009, 10:13 AM
Very very small and super-fine-grade files, sometimes called "needle files"

Go very slowly, clean and examine the area frequently, lest you take off too much metal or tweak the chamber into an 'out-of-round' shape.

Never mind HOW I know, I just know.

Can you post a pic of how bad the damage is?

armoredman
October 19, 2009, 10:13 AM
Good grief, those things still exist? They were cheap when I had a J22 back in '85. Upgrade to a HiPoint, best thing you can do with such a cheap gun.

darksidemxer
October 19, 2009, 10:48 AM
http://www.theledger.com/article/20091003/NEWS/910039958/1410?Title=Three-Hurt-in-Gun-Range-Accident
careful with those jennings, ive heard numerous stories like this 1.

GLOOB
October 19, 2009, 02:23 PM
That was a 9mm Jennings, which has an official manufacturer recall on it that describes this exact behavior. And last I heard, Hi-Point doesn't make a pocket .22 auto. Gee whiz, people! Get it together.

The J22 has a pretty good reputation for reliability. I wonder if this barrel had been dry fired a lot.

w_houle
October 19, 2009, 07:03 PM
Can you post a pic of how bad the damage is?
Not much to see, except a slight dent on the breech face that looks like an impression of the firing pin.
I wonder if this barrel had been dry fired a lot.
That's my thought too.
Very very small and super-fine-grade files, sometimes called "needle files"

Go very slowly, clean and examine the area frequently, lest you take off too much metal or tweak the chamber into an 'out-of-round' shape.
I was thinking as much, but wanted to drop a line here first to find any neat tricks to it.
Good grief, those things still exist? They were cheap when I had a J22 back in '85. Upgrade to a Hi Point, best thing you can do with such a cheap gun.
When Hi Point starts making 'em, I'll consider it.
http://www.theledger.com/article/200...Range-Accident
careful with those jennings, ive heard numerous stories like this 1.
Of all the things that can be tinkered with on singe action striker fired guns: Do not file the sear arm or the sear (as per the Taming of the JA380 instructions, that's bad advice). Do not clip and stretch the sear spring. Any, a mix, or in combination all of these "Modifications" can make the gun fire in an uncontrolled manner. Seeing as to how I'm talking about home smithing it, I can see how it would be pertinent in that light.

gyvel
October 19, 2009, 08:08 PM
foghornl has the right idea. Get a set (if you don't already have one) of Swiss needle files and very carefully file the burr at the edge of the chamber.

Fryerpower
January 31, 2013, 01:17 PM
http://www.brownells.com/.aspx/pid=8869/Product/-22-CHAMBER-IRONING-TOOL

I found this in another thread. I am having the same issue, apparently from dry firing. I have ordered the Swiss needle files and am ordering the chamber ironing tool. I'll try to iron it out first.

Jim

firesky101
January 31, 2013, 02:32 PM
Yes the chamber iron is the answer. The files will remove metal, and that should be a last resort.

Fryerpower
January 31, 2013, 02:44 PM
Yep, that other thread is pretty clear about that and it just makes sense. I went ahead and ordered the files because I just want to have them around the house.

Jim

Deer_Freak
January 31, 2013, 02:58 PM
I don't see how the pot metal firing pin damaged the steel barrel. The firing pin might have left some metal on the barrel. If you have ever seen a new Jennings 22 firing pin it has rounded tip that becomes flat in short order. The OP should be able to clean the barrel up with a little sand paper on the flat area.

Fryerpower
January 31, 2013, 03:40 PM
Well my barrel is dented in where the firing pin hits and the barrel wall is pushed down causing the spent brass to snag. The firing pin does not look like pot metal to me.

Jim

Tinmanchl
February 12, 2013, 06:15 PM
I have a j22 that had 4 rounds put throw it and then put away back in 1985 and now I would like to take it out and fire it but I would like to know the proper way to clean it and oil it if need be? I also have an old erma 22 that has be sitting in gun safe for even longer

Deltaboy
February 12, 2013, 08:05 PM
I had a Jennings back in the 1980s and carried it as my anti- dog gun. Sold it for 40 bucks more than I paid for it.

Carl N. Brown
February 12, 2013, 08:51 PM
I don't see how the pot metal firing pin damaged the steel barrel.

That just did not strike me as right. I took my J22 apart just now and took the firing pin out and it is very attracted to the magnet in my picker-upper tool extension. The firing pin is steel.

Among my rules for handling a striker-fired .22 pistol are (a) dry fire only with an empty case and (b) carry chamber empty, mag loaded, safety off and practice racking the slide on draw, and (c) never trust it chamber loaded, cocked on safe for pocket carry.

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