1911 Question

[TexasJackKin]

What would cause my new Springfield TRP, to have trigger creep about once every 5 or 6 shots, but be glass break crisp the rest of the time. While shooting it for the first time, about once per magazine, I could feel the trigger move, stop, and then break clean. The rest of the time, just a very nice clean break.

So far I've only got 100 rounds though it, is this something that will improve with use? I've never noticed during dry firing , before shooting it, but now it does it while dry firing after actually shooting it, about once every 5 or 6 times.

Ideas? Thanks in advance.

[MosinVirus]

Are you talking about take up maybe? The trigger moves a bit first, then the disconnector contacts the sear, which is when you feel additional tension of the sear leg of the spring, and then the sear gets pushed out of engagement with the hammer.

I am wondering if maybe you sometimes let the trigger move out a bit more on reset, which adds take up travel.

Creep would be happening only at the very end of trigger travel, when the sear disengages from hammer. But it doesn't sound like that is what you are describing.

[TexasJackKin]

No, I'm talking about creep after the trigger bow contacts sear/dis-connector. this is a new pistol, and it only does it once in a while. I'm starting to think maybe the dis-connector may be a bit tight in the hole where it comes though the frame, and occasionally hangs up a bit and not returning to the exact same place now and then. Not enough to effect operation but maybe doing something odd to the trigger mechanism. I won't have a chance to check it out until this weekend.

Does that make sense to any of you 1911 gurus??

[MosinVirus]

I would take it apart, remove the grip safety and watch what happens. You may be able to spot exactly what you feel. Also I would take the parts out and just examine them for rub marks, and check corresponding surfaces.

[350skylark]

I would take it apart, remove the grip safety and watch what happens. You may be able to spot exactly what you feel. Also I would take the parts out and just examine them for rub marks, and check corresponding surfaces.

only thing i could think of, could be a rough patch thats messing with the travel, and maybe sometimes its getting hit by a part and somtimes its not

[tonyjr]

Sounds like slop / play and once in a while it moves and hands up / or a little more resistance . Like earlier said , look for wear / shinny spots .

[RonPogi]

maybe your magazine and a trigger bow is binding.

[shafferds]

Mark parts with a sharpie than put back together, dry fire several times than take apart. See where it is rubbing and polish that spot.

[MosinVirus]

No, I'm talking about creep after the trigger bow contacts sear/dis-connector. this is a new pistol, and it only does it once in a while. I'm starting to think maybe the dis-connector may be a bit tight in the hole where it comes though the frame, and occasionally hangs up a bit and not returning to the exact same place now and then. Not enough to effect operation but maybe doing something odd to the trigger mechanism. I won't have a chance to check it out until this weekend.

Does that make sense to any of you 1911 gurus??

I am no guru by any means, but I still think you may be able to start identifying the issue when you look at the assembly without the grip safety in place.

Have you tried asking on 1911forum? You will certainly get more 1911 gurus there.

[wpage]

Mag rub...

[jericho89]

Mag rub...

Easy to test this... does it do it when the mag is not in?

[TexasJackKin]

Mag rub had not occurred to me, checked, and that's not it, does it with the mag removed. I did notice slight rub mark on the trigger bow where it contacts the dis-connector.

While the dis-connector was nicely finished, I noticed while stoning it, the the stone was only hitting at the corners, telling me that it wasn't dead flat. this seems to have caused the corners of the dis-connector to raise the smallest of burrs on the trigger bow.... Probably something thing that would wear in, on not even noticed by someone that's not a crisp trigger snob.

This weekend has been extremely busy for me, and the pistol is still apart, it looks like I'll have a bit of time this afternoon, and will put it back together this afternoon without the grip safety, as has been suggested, just to see what I can see.

Thanks for all the help and advice, I'll let you know what I find out.

[MosinVirus]

I assume you have already looked at the sear and hammer engagement surfaces. Are they evenly worn?

[TexasJackKin]

I assume you have already looked at the sear and hammer engagement surfaces. Are they evenly worn?

There is not much wear only 100 rounds and some dry firing.

It still does it, clean and crisp 6 or 8 times in a row, then 2 or 3 times in a row with creep. What I observe looking at the sear working with the grip safety off, is that the sear moves without dropping the hammer now and then. pulling a bit more and the hammer drops. Most of the time there is no perceivable movement in the sear before the release.

[MosinVirus]

So... I am definitely not an authority on 1911s, but I would look at the engagement surfaces for sure. Specifically at the hammer hook height and the sear relief angle as well as primary angle.

You could pull the hammer and sear out and using their pins put them on the side of the frame. Take a couple of really up close pictures of the engagement relationship.

Post here and someone who is a 1911 guru could leet you know if you have a correctly configured angle combo.