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  #1  
Old 10-27-2019, 07:31 PM
Deucer01 Deucer01 is offline
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Custom Delta Elite Failure To Feed Issue Fixed

My Delta Elite came back from a gunsmith (un-named please to avoid thread lock) for custom work with failure to feed issues using both Colt and Wilson mags. Nose of the bullet would come to a hard stop on the feed ramp of the Kart barrel. Sent it back to same gunsmith and when I got it back it would feed with the Colt mags but still a no go with Wilsons. And the accuracy wasn't what I would expect from a match grade barrel. I also noticed later the rounds that fed from a full mag had .030" - .040" of setback.

So did some research and learned the Kart ramp angle is steeper than the stock ramp. If I recall correctly, Kart is 26 deg. from vertical whereas Colt frame ramp is 31 deg from vertical. I also found pics of Kimber and Dan Wesson 10mm ramped barrels and they appeared to expose more of the brass base than the Kart, presumably to facilitate a shallower ramp angle and thus reliable feeding.

Thanks @JohnyEggo, https://forums.1911forum.com/showpos...05&postcount=6.

Pic of my Kart ramped barrel as it came from the gunsmith.



So I decided to send the pistol to a different gunsmith, who wants to remain nameless, and seemed to be knowledgeable with regard to ramped barrels. The ramp looks like the Dan Wesson and now both Colt/Wilson mags feed much smoother and with no bullet setback. I understand Nighthawk ramped barrels look like this too.

Here's a pic of my Kart now next to the original Colt barrel. It has about the same amount of brass exposed as a Dan Wesson but still a lot less than the stock Colt barrel.



Test fired with 100 rounds rounds of Sig 180gr ammo without stoppage, cycling very smoothly. Accuracy appeared to be much better too probably because of no bullet setback. Went from grapefruit size groups to plum size ragged hole groups off hand at 15 yards. Liking my Delta very much again. Hope to get it into my carry cycle after a hundred more trouble free rounds.

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  #2  
Old 10-27-2019, 08:14 PM
Infidel525 Infidel525 is online now
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You could have made this thread without any mention of your prior grievance and the digs at the first gunsmith.

Glad that the gun is fixed.

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  #3  
Old 10-27-2019, 08:18 PM
Hopknockious Hopknockious is offline
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Quote:
Originally Posted by Infidel525 View Post
You could have made this thread without any mention of your prior grievance and the digs at the first gunsmith.

Glad that the gun is fixed.

Sent from my XT1585 using Tapatalk
Why? It seems it's rather relevant to the story of the pistol, it's issues, remedy, and current status.
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  #4  
Old 10-27-2019, 08:18 PM
Coquio Coquio is offline
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Quote:
Originally Posted by Infidel525 View Post
You could have made this thread without any mention of your prior grievance and the digs at the first gunsmith.

Glad that the gun is fixed.

Sent from my XT1585 using Tapatalk
Would have made no difference. It's not like we don't remember that whole situation. The delta looks amazing though. Can yo share some more pictures? Maybe the mainspring housing and how nice it came out. I like the way it was rounded and the border checkering.
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  #5  
Old 10-28-2019, 08:36 AM
Infidel525 Infidel525 is online now
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Originally Posted by Coquio View Post
Maybe the mainspring housing and how nice it came out. I like the way it was rounded and the border checkering.
He might not be interested in showcasing that other smiths work considering this is a crap on that guy thread


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  #6  
Old 10-28-2019, 08:38 AM
Infidel525 Infidel525 is online now
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Originally Posted by Hopknockious View Post
Why? It seems it's rather relevant to the story of the pistol, it's issues, remedy, and current status.
He could have worded it in a different way and still go the point across considering as the other member said... We all know who it was ...

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  #7  
Old 10-29-2019, 09:43 PM
TGR TGR is offline
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Could you show us a pic of the ramp now??

Dropping a round in a chamber and looking at the case support is a poor way to measure case support. With some very simple techniques you can accurately measure case support. If you take that accurate measurement and compare it to a dissected 10mm case you will get a great visual on how much unsupported brass you have while firing your gun.

I'm sure your barrel is in great shape if a smith did the work but it is still great peace of mind while shooting the hot stuff to have a accurate visual of your case support.

I just installed a kart barrel in a 10mm. It has 100% case support and hasn't malfed in any way.

Your 10mm looks very nice!


Shooting a G20 or Delta would make me nervous.
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  #8  
Old 10-30-2019, 09:09 AM
Deucer01 Deucer01 is offline
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Quote:
Originally Posted by TGR View Post
Could you show us a pic of the ramp now??

Dropping a round in a chamber and looking at the case support is a poor way to measure case support. With some very simple techniques you can accurately measure case support. If you take that accurate measurement and compare it to a dissected 10mm case you will get a great visual on how much unsupported brass you have while firing your gun.

I'm sure your barrel is in great shape if a smith did the work but it is still great peace of mind while shooting the hot stuff to have a accurate visual of your case support.

I just installed a kart barrel in a 10mm. It has 100% case support and hasn't malfed in any way.

Your 10mm looks very nice!


Shooting a G20 or Delta would make me nervous.
The second pic shows the current ramp next to the stock Colt barrel. Let me know if you can't see it. It's linked from Google Photos.

It does give me peace of mind knowing I can shoot the stouter loads. Have you checked for bullet setback in your 10mm? Before the ramp was reworked I was getting a lot of bullet setback wiith factory Sig ammo.
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