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Discussion Starter #1 (Edited)
Just had a BarSto barrel and bushing fitted into the '78 Commander in 9mm. I think the lug was built up to fit better.

I've run about 200 rnds thru it since the fit.

Cleaned it today and found this:






I've been using a nylon/plastic bushing wrench since I first got it back, and the tension seems consistent when removing it.

Here's the lug channel:


What's going on here and what's the cure?
 

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From the pictures I'd say it's a bushing problem not a slide issue.

All I can guess is whoever installed it may well have built it up and botched the job. Possibly the heat from welding ruined the heat treating and it's galling.
Hows the barrel?

I'd suggest having a new bushing fitted by someone else and see how that wears.
I "think" you can send the slide and barrel to Bar-Sto and they'll fit a new bushing for you, and that's just what I'd do.
 

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Discussion Starter #3 (Edited)
thanks

barrel is fine and it's grouping better than any 1911 I've owned

Ok, I got the straight poop:

Sometime in the past, a smith had removed material inside the slide to fit a bushing.

The BarSto bushing (that came with the barrel) was too loose.

BarSto drug their feet and won't send an oversized bushing.

Plan B was weld a new Bauer bushing.

Bauer metal was a little soft so we have what's in the pic.

The gunsmith will make sure EGW machines an oversized bushing and we're fixed.

Back in the mail tomorrow!
 

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Rule number One of gunsmithing: Alter the part that's easiest or cheapest to replace.

Altering the slide to fit a bushing is lousy gunsmithing to my opinion. It may have been easier at the time for the gunsmith, but it sure botched you up now.
 

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Discussion Starter #5
Live and learn, in my case
 
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