1911 gurus: Kimber Super Carry Pro FTF first round

[1KPerDay]

So my brother has a nice Super Carry Pro. Looks good, feels good, shoots good.

First round of the mag fails to feed nearly every time when releasing the slide from the slide stop. About half the time when slingshotting. 230 grain ball, kimber mags, Wilson 47D mags, CMC mags.

Otherwise it seems to feed and fire fine.

Ideas? Extractor too tight? chamber or ramp?

Thanks

 

[wally]

FTF? hanging with bullet nose at top of chamber? bottom of ramp? three point jam?

New gun or used?

 

[dogmush]

Where exactly is it hanging? Pics would be good.

In the mean time, try a different mag. 47D's have, IIRC, a pretty abrupt, early release.

Usually a first round failure to feed is the round not slipping under the extractor. this can be caused by a couple things though. Where's the rim of the case when it stops?

 

[1KPerDay]

I'll try to remember to snap a pic next time. Dunno if it's new... it looks new. I'll ask.

 

[JTQ]

They are all 8 round mags aren't they?

 

[Steve in Allentown]

Just had this issue with a Springfield. The cure was swapping the mag catch for an EGW higher catch and switching to Tripp 8 round magazines.

The original factory 8 rnd flush fit mag and the Checkmate 7 round GI mags all began working as well.

The higher mag catch and Tripp mags indicate to me that some internal geometry of the pistol wasn't quite in-spec.

 

[1KPerDay]

Interesting. Thanks.

 

[1KPerDay]

So... it takes me a while to get projects done.

Which EGW catch? This one says .040" higher

http://www.brownells.com/handgun-pa...auto-heavy-duty-magazine-catch-prod27432.aspx

This one says .020" higher.

http://www.midwayusa.com/product/2160267225/egw-hd-raised-magazine-catch-1911

Is one a typo?

Thanks.

 

[DeepSouth]

They are all 8 round mags aren't they?

That was my first thought as well, I hate 8 round 1911 mags with a passion.

 

[jhb]

That was my first thought as well, I hate 8 round 1911 mags with a passion.

I'm the opposite. I only like the 8 round mags. I want that extra round.

I've never had any more issues with 8 rounders vs. The 7 rounders some of my guns came with from various makers....is it a common issue like the op's issue that the 8 rounders often cause? Thanks for the info.

 

[1KPerDay]

Here's my thought: If I have several 1911s that run flawlessly on any quality brand or design of 8 round mag, then every 1911 ought to be able to. Expensive Kimbers should run flawlessly with the expensive mags they come with and with any other quality mag.

If I can change a 30 dollar part and make that happen, rather than spend hundreds on a bunch of mags of an "approved" type, I will.

 

[L-2]

The cheapest and probable cause from my Kimber & 1911 experience is the extractor adjustment. Anything else is going to take time, money, parts substitutions, maybe a trip back to Kimber.

 

[1911Tuner]

Is it a failure to feed or a failure to go to battery?

If the cartridge gets into the chamber part way and stops...it's the latter.

If this is the case...can you push or bump the slide into battery easily...or do you have to pull the slide back and start over?

 

[JTQ]

jhb wrote,
I've never had any more issues with 8 rounders vs. The 7 rounders some of my guns came with from various makers....is it a common issue like the op's issue that the 8 rounders often cause? Thanks for the info.

I'm not trying to convince you, or 1KPerDay one way the other, but the following is just another information data point...

From the late Stephen A. Camp's blog on 7 vs 8 round mags http://hipowers-handguns.blogspot.com/2010/11/what-is-best-7-or-8-shot-1911-45-acp.html

 

[Steve in Allentown]

Which EGW catch?
This one says .040" higher
This one says .020" higher.

Two different things being measured. The .040" refers to the button while the .020" refers to how much higher in the mag well the magazine is held.

Here it is on the EGW website: http://www.egwguns.com/index.php?p=product&id=132

 

[RainDodger]

Should be easiest to just try a different magazine. Personally, I've had problems with the Wilson 47s in my 1911s. I've had the best luck with either the factory Kimber mags, or McCormick mags. Both excellent quality.

 

[1KPerDay]

Two different things being measured. The .040" refers to the button while the .020" refers to how much higher in the mag well the magazine is held.

Here it is on the EGW website: http://www.egwguns.com/index.php?p=product&id=132

Thanks for the explanation.

 

[1KPerDay]

Is it a failure to feed or a failure to go to battery?

If the cartridge gets into the chamber part way and stops...it's the latter.

If this is the case...can you push or bump the slide into battery easily...or do you have to pull the slide back and start over?

Failure to feed, seems to 3-point jam on the ramp/hood. IIRC. Good to see you in this thread.

 

[Zerodefect]

Eh, is that the one where you polish up the hole in the barrel link to open it up? That doesn't sound like fun at all. The idea is to let the barrel rest on the lugs, not the link. And to slow down the rise of the barrel as the slide closes. Just make sure to polish the right spot of the link, and that the link is oriented properly when you do it. Don't forget where the link is supposed to be, when the slide is closed.

My Kimber had a similar fault. Needed more time to break in. It was really rough. Tripp 7 round mags and it preferred Federal ammo (as do I). I did clean up the ramps and throat of the barrel as well.

 

[1911Tuner]

Failure to feed, seems to 3-point jam on the ramp/hood. IIRC.

Let's get a few more details.

Ramp...barrel ramp or feed ramp? Does any part of the bullet nose get into the chamber...or does it stop at the junction of barrel and feed ramp?

Hood...at an acute angle with the bullet nose rammed into the barrel hood?

Sounds like there may be two issues here.

The devil's in the details.

 

[1911Tuner]

Do these two pictures look like what's happening?

 

[1KPerDay]

I'll shoot it today and try to take some pics.

 

[wingman]

Do you insert mag then pull slide back or pull slide back first then insert mag, if it works with slide back my opinion it's the mag. I seen a number of new mags that do not like a full count.

 

[1KPerDay]

1911Tuner, I remembered incorrectly. The jams are of the type you describe where it "almost chambers" and then stops. If I smack the back of the slide it usually will go into battery but sometimes won't. 99% of the time it's first round from the mag, but I did have 5th round jam with metalform and 2nd round jam with chip mccormick. Shooting WWB and berry's 230 reloads seated 1.260ish. Colt 8 round mag fed fine first round unless I used my MBC softball reloads, then I got the jams described above. Dan wesson mag worked fine.

There is a "cachunk" as you shoot it frequently; not every shot but often enough that I'm sure it's not normal. It's taking longer to go into battery than normal and not smoothly.






Extractor, you think? Chamber leade too abrupt?

 

[1911Tuner]

The "Ka-Chunk" that you describe suggests that the gun is on the verge of a 3-Point Jam...in which the bullet nose pushes the barrel forward and up into the slide too early.

But...

The fact that you can sometimes push or bump the slide to battery indicates that the extractor may be involved. Excessive extractor deflection...too much of the tensioning wall in the breechface area...can mimic a 3-Point, or even push one over the edge when it's close.

Look at your extractor and see if it resembles this one...that has about twice as much deflection as it should.

Unless I miss my guess, the "Ka-Chunk" is most noticeable when chambering the top round in a fresh magazine by using the slidestop to release the slide. A sure test is to remove the extractor and chamber the top round from a locked slide. If the ka-chunk disappears...there's your bug.

Study this and see how yours compares.