MOderator please delete! I posted in wrong subforum

I haven't had any pressure issues in either of my Glock 20's...a Gen 3 and a Gen 4. My OEM barrels seem to be well supported. I have fired Underwood 155 XTP, 165 tmj, 165 Gold dot, 180 tmj, and 200 XTP.

I have also fired Buffalo Bore 180 JHP and PBR 155 Montana Gold and 165 fmj without issue.

That having been said, I understand that every gun can be different, even if slightly so.