Suggestions on an accurizing/gun smithing manual for ruger 1911

[cookvette81]

I've had this gun for about a year and only have about 100 through it. I took it out for a run this weekend and it didn't seem to like truncated coned bullets. I know that they run better on round nose bullets but I already have several hundred TC loaded up and I really don't want to redo them all with RN. I thought doing a few things like polishing the feed ramp wouldn't hurt and may even help broaden it's appetite for other types of bullets.

This is my first 1911 and I would like to get a few books on how work on and improve on it some. What do y'all suggest?

Thanks guys,

Caleb

[concho]

The colt .45 Automatic , A shop manual By Jerry Kuhnhausen .

[wv109323]

The above book is good and there is another Hallock's .45 Auto Handbook.
I just downloaded for free an older book by Bill Wilson . Poke around his websight or the link to download the Wilson book was on 1911.com.

[Artful]

What's you loaded round look like? What kind of stoppages are occurring?

[cookvette81]

Artful, I wish I had taken a picture, but there is a gap that the bullet jumps from the feed ramp to the expanded part of the chamber that was ground out to help with the feeding do the round. The nose of the bullet catches that gap every once and a while.

[Artful]

Sounds like it's nose diving
A nose dive jam, is when the slide starts to strip the round from the mag, the nose of the cartridge hit’s the bottom of the feed ramp and stops.
Like this:


- how many magazines do you have of what kind?
Does it do the same with all magazines?
does your loaded ammo look like

This?

Is the rim of the cartridge captured under the extractor claw?

[cookvette81]

I have 2 ruger mags that came with it and 2 colt mags that I bought on clearance at midway.

It does it on all mags.

and yes the ammo looks like the picture. I had to seat the TC bullets just a little deeper so the square part of the nose would clear the rounded leading edge of the mag.

At this point I can't remember the answer to the last question. I was in a little bit of a rush because the instructor was starting to close up the range so I had to hurry up and pack up. Maybe I'll get another chance to trouble shoot some this weekend

[Artful]

Do you have any factory ammo loaded with bullets with similar profile, and if so have you shot them in your pistol?

[375RUGER]

Take a pic like this, it will help diagnois.
The feed ramp should be smooth. The 'gap' should be a smooth transition.
The breech face and extractor should be inspected to.
What is your load info? if they are mild loads you may be marginal on cycling.
I have an AMT and a long time ago before I modified it a lot, it only would feed with magazines with extended lips, but it digested everything. You can't buy them now but you can get these for a very good price. http://www.topgunsupply.com/check-ma...-magazine.html
The hybrid lip is the key.

[M-Tecs]

http://www.m1911.org/books.htm

[cookvette81]

I'll try to take a pictured when I get back home to the gun tonight.

As far as the load data, I think it was 4.6 Unique but I'll,have to double check. I remember going with the lowest grn possible to help stretch out what powder I had left. That was one of the possible culprits that I was considering, but I'm pretty sure that I could feel the slide do a complete rack.

I'll post again this evening when I get back to it.

[cookvette81]

Here ya go

[cookvette81]

The middle one is the reload.

Length:
Left: 1.205
Center: 1.235
Right 1.252

The book says to seat 1.275

[Artful]

Well I don't see anything obviously out of line.

[375RUGER]

I wouldn't even touch that, nicely polished already.
You never said what weight bullet.
If they are 200g, I'd be running them hotter than that, but that's just me.

[cookvette81]

Oops, They are 200grn Rainier TC flat nose .451 with 4.6 of unique behind it.

I racked a few rounds in and out using the different mags I had to see if it was the mags, and the squared off part of the nose would catch that little gap lip going from the feed ramp to the chamber.

I really should have put round nose bullets in it, didn't expect for TC to give this much issue.

[MtGun44]

Switch to H&G 68 or accurate clone to solve feeding issues.

Bill

[Artful]

I'm looking at your ammo picture and thinking have you tried seating a little deeper?

[cookvette81]

Yes, I tried seating a few at 1.205. That matched the shortest of the factory rounds pictured

[Artful]

And the factory rounds functioned fine? - very strange

cookvette81 they do function fine - right?