The Gift .22 . . . . . With issues. - Page 3 - Graybeard Outdoors
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post #21 of 27 (permalink) Old 04-23-2019, 09:02 AM
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Google "22 chamber iron" - several hits on how to make your own tool. Apparently the Menck tool is no longer in production as Midway also lists it as discontinued.
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post #22 of 27 (permalink) Old 04-28-2019, 03:18 AM Thread Starter
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This afternoon we went out, and tried the 552 (replacef the hammer spring), I stoked it with 10 rnds Federal silver box, cycled in the first round, which fired, the second didnt and neiter did the 7th & 9th rounds tried.
So 7 out of ten fired!*
Then tried another six and only one fired, then I tried*some old CCI minimags and every one of them duded out on me.

After getting back to town, I removed the barrel/bolt unit.
While out I noticed some battering on the side front Left side of the hammer, its fresh from hitting something and killing off the hammer blow force.


Too a photo of the bolt and barrel inverted so the firing pin was hanging down out of the bolt, then tipped it down so the firing pin gravity dropped into the fired position.
Then the odd dent on the forward Left corner of the hammer.
Last couple photo of me trying to get a hammer side play deflection.
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post #23 of 27 (permalink) Old 04-28-2019, 03:28 AM Thread Starter
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As I was sitting there studying just what the heck was scuffing the hammer, I had it reassembled and was slowly working the bolt.
I noticed there is a pretty fair ammount of CCW torsional twist to the bolt as it closed the last half inch.
Trying to figure just how much movement is happening I added some post-it sticky pad over part the ejection port.

If the tolerances of the ejector and grooves on the side of the bolt that also act as a bolt guide are excessive this could allow the bolt to twist as it cycles, possibly twisting in such a way that causes the hammer to strike a glancing blow when fired instead of squarely striking the firing pin causing light hits?
I might try a new bolt guide/ejector before trying to locate a new bolt
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Last edited by Rex in OTZ; 04-28-2019 at 03:31 AM.
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post #24 of 27 (permalink) Old 04-28-2019, 10:31 PM
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Following up on Spruce's comments: I have a new to me TC Encore .22 barrel which would not chamber a .22 LR when I first took it out. Dry firing had resulted in the firing pin peening a burr on the rear face of the barrel which extended into the chamber opening. I made a tool from a ?.221" or thereabouts HSS drill bit by grinding a short groove in the shank of the drill with a dremel cutoff wheel. Gripping the drill bit with vice grips and aligning the groove with the burr I could insert the drill shank into the chamber. Rotating the drill bit back and forth ironed out the burr and .22 LRs drop right in.
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post #25 of 27 (permalink) Old 04-28-2019, 11:02 PM
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Fro m my post about a year ago:

"Web research found a no longer available tool for smoothing out .22 chamber burrs, advice on inserting and tapping a taper punch, advice on filing, advice on chamber reamers......and a description of a burr swaging tool made from a .228" No. 1 drill."
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post #26 of 27 (permalink) Old 04-30-2019, 08:08 PM Thread Starter
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Last Sunday I studied the trigger group, as noted, there was scarring on the front edge of the hammer.
And I was looking at the bolt and its axial freeplay and the engagement in the Bolt guide/ejector.
Thinking this is one area I had yet to address.
So I removed the Bolt guide/
extractor and placed it on a anvil and adjusted it some using a hammer to square the engaugement slot better.
Then using a couple prybars spread open the bolt guide so it would better support the Bolt to remove some the excessive axial rotation of the bolt.
The reassembled the 552 for another function test.

Last edited by Rex in OTZ; 05-01-2019 at 10:40 PM.
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post #27 of 27 (permalink) Old 04-30-2019, 08:39 PM Thread Starter
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Last night the oldest daughter said she 'NEED'ed' some firearms therapy so we loaded up the snowmobiles and a couple .22's and some other "firearms with a high fun factor" and snowmobiled out to an secluded spot, to relax and have fun and for me the chance to test the 552 after tweaking the bolt guide/ejector.
It was about 8pm Alaska Time
Air temprature 40F
Using fresh CCI ammunition.
I loaded 5 rounds in the magazine and tried a couple shots.
What was surprising was It fired like it should! The 552 shot all 5 rounds without a single FTF!
I did pick up some the spent brass for later study
I loaded another 15 rounds and tried it again and it shot all of them without a hitch.
Then I loaded another 15 rounds and let my son shoot.
Then another 15 for my daughter.
Thats when she encountered two FTF out of 15.
Then my son tried another 15 rounds and more FTF's started to crop up.
Then It just went to a steady stream of FTF's.
Well that gave me something to think about.
The other .22 rifle we brought along used the same box of ammunition and worked till it developed a safety issue and was cleard and put up for later inspection.
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Last edited by Rex in OTZ; 04-30-2019 at 08:48 PM.
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