Measuring Chamber Tolerances in 4 Different Glock 19 Barrels. Lone Wolf, BCA, OEM, threaded barrel

I had one of my reloads fail to chamber in the new Lone Wolf threaded barrel over the weekend because of a slight bulge in the base. After I got back to the shop, I dropped the round into the BCA threaded barrel and it plunked right in.

I decided to check all 4 of the G19 barrels to see how much difference there was in between each of them.