Went with an old case (2010/2011) of BVAC 9mm, the stuff that I got as a group buy when no 9mm could be found and in a Glock 40-9 barrel for a Glock 23 and had 4 stuck rounds in the chamber. After that I did a crazy thing and shot 30 rounds of wolf 9mm and it shot well and grouped well. Shot 15 rounds of 115 +p+ and it shot better.
The range guy and I used a go/no go measurement gauge on the 4 loaded rounds and it seems like they were not full length resized. They would not fit fully in the gauge. We shot the rest through my old Glock 17 with factory barrel and the other box shot with no issues. Accuracy sucks, wolf, bear, and cci aluminum are more accurate.
The barrel on the 40-9 barrel in the 23 and my Glock 17 are now really dirty, I mean worse than tula in a AR dirty with this ammo. Case issue and I am assuming a slower burning powder is another contributing issue.
I am going to regulate all remaining Bvac ammo for the Glock 17. I was wondering why I was shooting worse than normal but after shooting wolf 9mm I was shooting better than my previous 5 range trips all with bvac ammo (just trying to use it up).