Re: Glock match barrel
I've been shooting USPSA Production Division with a Glock 34 for quite a few years. My 34 has right around 30,000 rounds through it. Yes, that's 30,000 rounds. Sounds like a lot but it's really not.
I have a Storm Lake aftermarket that I have about half those rounds through with this gun. I purchased the Storm Lake barrel purely for running lead bullets. However, I primarily shoot FMJ now and went back to my Glock barrel as it has a somewhat more forgiving chamber, therefore enhanced reliability. Don't get me wrong, I had excellent reliability out the Storm Lake but, I've had nearly perfect performance with the factory barrel.
The Storm Lake is a good barrel but when comparing groups between both barrels there was no identifiable improvement in the accuracy with the Storm Lake.
I did have more malfunctions with the Storm Lake barrel related to range pickup brass with a slight "Glock" bulge the dies could not get down far enough to resize. I saved these same rounds and they would chamber and fire in the Glock barrel.
My recommendation. If you plan on shooting lead bullets go with any of the bigger manufacturers, ie Storm Lake, Lone Wolf, KKM. I would not buy an aftermarket barrel with hopes of increasing accuracy to gain the extra 2 points between a A zone vs C zone hit. Reason being, you'll likely have an occasional malfunction with the aftermarket barrel you wouldn't have had with the factory barrel resulting in an entirely blown stage along with the frustration that will likely have at least some impact on your performance on subsequent stages.
Hope this helps.