Can somebody post a picture of the current (within 1-yr?) PSA 9mm barrel feed cone?
I am thinking of buying the Memorial Day sale complete upper 16", with BCG & charging handle. But wonder about feeding Winchester M1152 flat nose bullets. Commercially they call it 115gr “Service Grade”.
The only barrels i have seen run those reliably are ones altered by Rudy at Macon Armory.
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Ballistic Advantage about a year ago changed the feed cone/entry of their 9mm AR barrels. It looks a lot like the Macon modification. I ordered their barrel through B. Kings Firearms (Aero Precision sells them also).
Picture Enhanced Feed Ramp
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That’s the Angle I needed!
I had a couple barrels, and I had a lathe - but I didn’t want to experiment with the angle… 
(honestly, I suspected it would probably be somewhere around 60-degrees off the bore-axis - 62 it is!)
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This is where I got the info. YouTube of a guy returning/exchanging in 2023.
Package label 124 deg
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| / |\ | For some reason it’s not liking my symbols.
|/62 deg | 62 deg| Not sure why.
Nets 124 deg
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I completed my 9mm PCC build and range tested it.
Uses the Ballistic Advantage 16" barrel with enhanced feed cone (124 deg).
Everything went well, no feed or eject problems. Shot 5 types of ammo.
Date Tested 5/30/2024, 75 deg F, 39%, 30.10"Hg, 550ft elevation 29.51"Hg
Summary:
1340 fps Hyperion/Veteran 115gr FMJ-RN
1347 fps Hyperion/Veteran 115gr FMJ-RN
1336 fps Winchester 115gr FMJ-RN
1349 fps Winchester 124gr NATO FMJ-RN
1525 fps Winchester 115gr M1152 FMJ-FN “Service Grade” (Flat nose or Truncated flat nose)
1435 fps Hornady 124gr XTP HP +P American Gunner (Hollow Point, defense ammo)
Wow, those are impressive velocities from 9mm Luger (9x19) handgun ammo. That military M1152 commercial version sold by Winchester is wicked fast from a 16” barrel. And that Hornady +P 124gr was moving fast too.
A couple days later, I bought and fired some AAC 9mm 124gn XTP (Hornady hollow point bullets). It worked flawlessly and cost less than buying the Hornady branded.
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Yeah I have a newer Aero 9mm barrel (also Ballistic Advantage) and was in awe of the feed cone!
Impressive input! And welcome to the PSA forum 
I shot 2 groups with the AAC 124gn XTP ammo. This is the first series of 5 shots.
1411 fps average.
Chronograph data AAC 124gn XTP 9mm
And this is my barrel markings and the package label from Ballistic Advantage.Barrel markings & label