1911 nosedive

[Hoyza]

What is the likely culprit? I replaced the mag with another gi model, still dives...

[jycprofessional]

probably just need to lift more

[iFrantic Kecleon]

I swear I can feel my 1911 wanting to do this sometimes it actually does! I'd like to hear if other people have fixed this problem maybe by type of ammo. If I wasn't so lazy these recent months I'd actually try create a more flat surfaced feed ramp. But just make sure you don't go past where the barrel sits otherwise it might throw off the entire fitting of barrel to frame. Maybe even a heavier recoil spring might do the job but I love using 10lb springs on my 1911!

[CifaldiPrecision]

[Tehjosheh]

Now, I'm 100% sure Brett is more of an expert than I am, but I do remember watching a video recently on selecting the proper recoil springs and seeing its impact on nose diving:

https://youtu.be/xUecHstU4QQ

[redcliff]

Check that your extractor tension is not too heavy.

[ojisan]

IARC


Jams at the front are often caused by problems at the back.
The extractor is first to check.
Presuming the gun did work at sometime in the past, I would try other magazines too.
But, have you cleaned your magazines?
Sluggish sticky mags can cause this problem.

[MarikinaMan]

Ive seen people run the spring backwards, that tends to make the round dive towards the last couple of rounds.

[walmart_ar15]

http://www.egwguns.com/1911-parts/hd-higher-mag-catch-machined-from-barstock-checkered-blue/

U can thx me later

[L84CABO]

I have a 9mm Wilson CQB. When I run my hollow points (Federal HST 124 gr) in a Wilson ETM mag, it runs flawlessly.

However, when I run the HST's in a 9mm Tripp Cobra Mag...a very high quality mag...the rounds dive into the ramp EVERY SINGLE FREAKING TIME. It's literally 100% of the time.

The mag can absolutely matter.

And when it comes to feeding issues with 1911's, the mag is ALWAYS the first thing I will look at. In no small part because it's the easiest thing to troubleshoot. Spend a few bucks on a Wilson mag and see if it solves your problem. If it doesn't, you'll still have a very high quality mag that you can use...or sell.

Note, You can probably even borrow one at the range. It's a pretty popular mag (any Wilson mag will do/It doesn't have to be an ETM mag). Just look around for people shooting 1911's and ask them what mag they're running.

[CifaldiPrecision]

New Wilson 9mm mags have a small ramp built in to minimize nose dive caused failure to feed. I highly recommend them for 9mm 1911s.


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[SonofWWIIDI]

My 1911 (and the other few guns I owned) doesn’t know how to swim...




I blame myself after that ill fated boating expedition. They sank right to the bottom of the abyss, I should have taught them to swim and had some kind of FFD (firearms floatation device). Dammit, where was the overbearing, overreaching, tyrannical government that passes laws that protect me and my (former) little family from the woes of forces (both real and imaginary) that might harm public safety. There should have been signs (in my native language and the other 6 that I speak) to warn me my precious family might be at risk.

Fortunately I left all my standard capacity and “high” capacity magazines (over 10 rounds) at home with the dog to keep an eye on things. They survive to this day and we constantly search for their parents, while I’m fishing. I drag the lake bed everytime I go, all to no avail. All I usually get are fish.

[checkenbach]

My Springfield 9mm 1911 hated old style Wilson Combat mags, but loved Metal Form ones, and the new style W.C. with a Metal Form style follower... But my Colts work with just about anything...

[walmart_ar15]

1911 Forum has many good articles on why the 1911's magazine matters.

Jest of it is that the platform was designed for RN bullets back in 1911 not HP or FN bullets. Vendors try to change the magazine lip design to compensate. Combined with various vendor's 1911 dimensions, the tweak had mix results. Thus, the idea of trying different brand of magazine to see which works best in your particular 1911.

Some modern day HPs actually have very similar bullet profile as typical RN bullet. These type of HP provides the best reliability in the 1911 platform.

I read that nose dive happens when the magazine lips fail to release the round at the correct moment to allow the mag spring to push the round into the breach (positioning the round to the chamber). As the slide move forward, with the back of the round still held by the mag lips, the front of the bullet will get caught on the ramp and the angle of force on back of the bullet will tilt the round downward causing a nose dive.

Depending on your particular guns dimension, nose dive various in angle and position. The worst thing to do is try to flatten down the ramp angle thinking that will allow more room. It will just make the nose dive worst.

[NOTABIKER]

I have not had this problem with my RIA 1911 45 acp. I always use 230 grain ammo. I have one provided magazine and one gun show mag. both work fine.
I never thought to try hollow tip bullets or lighter grain bullets.
Cheap steel case TULA and anything else i feed it works fine.