They weren't horrible. Accuracy wise but definitely some fliers that I didn't have with the factory and it was very solid for about 12-15 yards.
The part I enjoyed most was my factory glock barrel was much more accurate than my storm lake barrel lol.
Here is the best pic I could get. This one almost looks grooved.
"fliers" are typical of over crimped plated bullets. ... and that looks like a lot of crimp!
factory glock barrels are very accurate!
-rvb