I purchased my Glock Model 20 when they were first introduced. So, I thought for a $150.00 for a ss Wolf barrel I would solve any potential case head and leading issues that I might encounter with the Underwood ammo.
I had an early Glock 20 also (traded it away), and mine had rather poor chamber support. Got a big bulging smiley on every case.
If your factory barrel is like mine was, the aftermarket is likely to be much safer, especially considering Underwood is not stingy with the powder.
