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Old 07-19-2021, 07:31 PM
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Kimber 1911 22LR Help Please

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I recently picked up a Kimber 1911 Super Custom 22 LR pistol and am hoping for some help from those here who have had one.

I love the fit and feel of the pistol and have been very surprised by the accuracy. A good friend was so impressed by mine, that he went to a local shop that still had a new stainless model in stock, and purchased it.

We're both having the same issues.

Whether I use the factory magazine or any of the Pro-Mag magazines that I purchased after getting the pistol, I get malfunctions from time to time.

There is no consistency to them either from the standpoint of the magazine being used, or the number of rounds in the magazine.

When it runs, it's great...but when it doesn't, it's a pain...

These are the issues we're both seeing...

1. The slide seems to run over the next round in the magazine without chambering it.

2. The slide will not go all the way to the rear, thus leaving a fired round to hand up in the ejection port.

3. The slide will pick up the next round in the magazine, but only partially chamber it.

While mine was purchased used, his was new old stock.

The pistols seem to do these things randomly, regardless of the magazine or ammo used.

We've debated replacing magazine springs, recoil springs, polishing the rails, polishing the inside of the magazines or followers...

Has anyone had any of these issues in the past?

If so, how did you fix it?

We haven't reached out to Kimber yet, but I'm not even sure how they would handle it since they no longer offer these for sale.

Any and all help is greatly appreciated.
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Old 07-19-2021, 09:23 PM

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Does the slide move freely with the recoil spring and such all out? Sounds like you may have a binding problem somewhere.Maybe the feed lips are bent on the mag and binding..I think the GSG mags may work in a Kimber..They are great mags if they will..They run way better in my Colt 22 Conversion than the original Colts do..

Does the mag seem to seat all the way in? Maybe the magazine catch is wore in the frame, or the the slot in the magazine?? Did Kimber use plastic magazines or the steel?

Look for unusual wear marks inside everything..Good Luck..Hope you get it going soon..
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Old 07-19-2021, 09:53 PM
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You must be referring to the Kimber 1911 "Rimfire Super" by your description of its behavior . . .

I absolutely agree with the points you like about it: handles great and is surprisingly accurate!
So much so, that I picked up a second one. Both were picked up lightly used
at an 'acceptable' price. (As always, acceptable is relative.)

Anyhow, yes they can sometimes be a little 'fussy'. Here's my thoughts . . .

They seem to run better with hotter ammo.

Think high velocity, Mini-Mags, etc.
I've got a supply of old Winchester Super-X that makes them go pretty well.
(I have had the least failures with Mini-Mags though I don't like to make a steady diet of them.
They can be a little rough on other 22 pistols, but the Kimbers seem ok with them. )

They like to be clean.

Who doesn't?

They like a generous application of a quality thin lubricant.

(Yes, this usually aggravates the 'keep it clean' problem, depending on ammo.)

I can get away with CCI SV if the gun is clean and well lubed for at least part of a shooting session.

I can also tell as soon as it starts getting too dirty.

The magazine springs strike me as the weakest springs on any 22 magazine.

They are super easy to load, even without a button to help depress the follower, but . . .

I suspect this choice was to minimize the friction on the slide by the highest round in the magazine,
in a bid to help the gun run on standard velocity ammo.

However, I would bet a stronger spring would make sure the top round is more
reliably presented to the slide as long as the slide is pushed all of the way back.

Don't know if any other 1911-22 style magazine springs are stronger and would fit the mag housing?

I suppose one could experiment with a lighter recoil springs if one could find a source for candidates

So, will running a higher velocity ammo cause the aluminum slide to beat on the
aluminum frame and shorten the guns life?

I haven't seen any warning signs yet, fingers crossed.

I think the thing to do is to keep trying CCI SV every once in a while to see if they will run it after things
are more broken in. If they do, I'll switch to them.

Good luck with yours!


Last edited by NVaVettes; 07-20-2021 at 07:01 PM.
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Old 07-20-2021, 09:23 PM
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Send the pro mags to someone you don't like and buy some that are much better.
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Old 07-20-2021, 09:38 PM
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Avoid bulk ammo especially fed automags. takes mags apart and deep clean including spring. don't over lube would be my thoughts.
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Old 07-21-2021, 08:49 AM
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Thanks for the replies!

I neglected to mention the ammo. We've tried Mini-Mags, Eley Force, which is what we use in Steel Challenge, as well as standard velocity ammo.

The issues seem consistent, regardless of ammo.

The Pro Mags function as well as the factory mags, so they don't seem to be an issue.

I think we're going to go down the rabbit hole, one item at a time to see if we can diagnose the issue.

Thanks again!
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Old 07-21-2021, 07:37 PM
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I find it very helpful to polish the chamber on 22 rimfires. I use Flitz on a barrel mop on a short cleaning rod attached to a hand drill. I also changed the hammer spring on my 1911 pistol frames. The factory hammer spring is 23 pounds. I use Wolff 18 pound hammer spring with my AA standard 1911 kit. I built a dedicated RIA 1911 frame and used the 18 pound hammer spring. I used the frame on my RIA 1911 A-1 frame until I built a dedicated frame. I changed the 23 pound spring to a 18 pound spring and have never had a problem igniting centerfire or rimfire ammo with the lighter hammer spring.
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Old 07-25-2021, 12:09 PM

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I do not think this has anything to do with the problem on your Kimber but will share what mine does not like. It is a single shot jam o matic with Winchester Wildcat HV and I do not know why. It functions flawless with CCI Mini Mag, Blazer, Remington GB, & Bulk Federal HV. It jams with Federal Auto Match about 50% of the time and about the same with any standard velocity. My Kimber unit is mounted on a S&W Target .45 with factory springs. Best of luck in solving your issue!
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Old 08-11-2021, 06:27 PM

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I have a rimfire target, owned it for 5 years or so. Mine runs flawlessly with factory mags if I use decent HV ammo, keep it clean and run it wet.

One of my favorite rimfire pistols. Would shoot it more if it were threaded.
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