1911 first round nose dive / mag issue?

I find that if you rap the back of the mag on the palm of your hand the rounds will seat to the rear of the mag and this will alleviate the problem - but not always.
 
The bullet's shape has nothing to do with it. It's an RN and should feed.
Far more likely to be the wrong follower or maybe the lips need tweaking a wee bit. I'd start by tweaking the lips open the the front a tick with fine, long, needle nosed pliers.
 
silverfoxdj said:
I have found some differences between Remington UMC and other brands where the bullet shape is more rounded and sits deeper in the case and would not feed properly in my CZ Shadow.. Changed ammo and works flawlessly now. I would check the OAL of what you are using and try something with a longer or shorter OAL to see what happens.
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You actually found something that would not feed in a Shadow?..
 
True. For most of my guns, it is the case. But not for my 1911 with those Cobra mags. My findings are these -- if I put the last (10th top round) all the way to the back, it will nose dive 100% of the time. If I move the round a tad forward in the mag, there is a 50/50% chance of nosedive.

RePete said:
I find that if you rap the back of the mag on the palm of your hand the rounds will seat to the rear of the mag and this will alleviate the problem - but not always.
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Yup, look at the extractor tension and second, you might want to try a EGW high mag catch,it helped on a couple of my 1911s that had nosedive issues as well.
 
The gun is almost brand new STI RangeMaster. I believe it is either the mag issue or the mag release holding the mag a tad low, according my own research.

misanthropist said:
What's the gun?

10 round mags are running on the outer edge of reliability for exactly this reason. If the gun is out of time at all, say, or slide velocity is wrong, or the extractor tension is too high or the extractor profile is wrong, this is the likely result.
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I was thinking about those. Where would you get a high mat catch? I tried Shotter's Connection in the States but they won't send it to Can.

mrclean said:
Yup, look at the extractor tension and second, you might want to try a EGW high mag catch,it helped on a couple of my 1911s that had nosedive issues as well.
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My Norinco was doing this all the time when new.

New Wilson 8rnds mags helped a lot.

Now after 300rnds it's not doing it anymore even with stock mags.
 
I have purchased Tripps before and they have shown up with the spring not installed correctly.
I would start here:
1)Some have had bent springs that should have never made it out of the assembly plant. Take them apart and confirm they are OK

2)There is also the possibility that the follower is not attached to the spring correctly. This is common

3) Mag body damage/mis formed at factory or through use. Confirm within spec. (avail. on internet)

4) confirm shelf height of mag in gun is correct. some mag bodies can be out of spec and more common the mag catch needs tuning. As others suggested, common as well.

5) If your pistol has problems with brand "X" mags whatsoever brand ..... pistol timing can come into play as well. Not common on a factory pistol but can happen. barrel not being pulled down far enough is a link length and incorrectly fitted lugs to pin relationship.
according to your photo,
My money is on a spring issue as well as your feed lips look spread a bit.
 
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My 1911 in .45acp does this all the time. Especially with swc. Tried a number of different mags with no success. No Cobra or Wilson yet though.

I have noticed the guys shooting 9mm 1911's in IPSC seem to be having better luck with S+B ammo for some reason. I am guessing it has to do with a longer oal as someone earlier suggested.
 
I'm also having the same nosedive issue in my STI spartan in 45. It only recently started doing with both my Wilson 10 round mags and Novak/Dlask 8 rounders. Most rounds fired have been Bdx reloads or UMC.
 
I contacted Tripp for Cobra mags and asked for his opinion on the issue.

He told me one very important thing that I need to share with everyone here:
1. Cobra mags are designed and manufactures for higher mag catch (mag release) because they see more and more people using those.
2. So, a high mag catch (mag release), such as from EGW will treat the issue.

I ordered EGW from Brownells. Had to fill out their silly form to release the order. Though there is an exception on exports of gun parts up to $500 now, they are still required to keep the form on file.
 
jackrabbit000 said:
Brownell's will ship Wilson Combat to Canada. I've ordered them lots of times already and never had a problem yet.
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I've ordered several Wilson parts from Brownell's with no problems....
The only stuff they won't ship out is from manufacturers who don't have their paperwork in order with whichever bureaucracy deals with this.

Stan
 
True, Stan.

Funny that Brownells shipped me a mag release (apparent gun part) but refused to send VZ Grips because it was classified as part of the frame :)

OldDude said:
I've ordered several Wilson parts from Brownell's with no problems....
The only stuff they won't ship out is from manufacturers who don't have their paperwork in order with whichever bureaucracy deals with this.

Stan
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Would like to update this section with some news. After having tried different brands of 9mm and different bullet weights, I have stopped experiencingnose dives with Tripp Cobra mags without changing anything to the gun. Same gun, just different ammo.

Indeed it matters a lot what OAL is and how Tue bullet is shape. If it's brass casing or steel. Makes a huge difference.

What I noticed with the ammo that was causing trouble is that when you push the round when loading all the way back in the mag, it interlocks with the previous round beneath it by the rim. When the slide was trying to strip it, it would let go easily and had a tendency to nose dive.

Other ammo I've tried did not interlock as strongly.
 
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