I've had my G30 since about 1999. I'm not sure how many thousands of rounds it's consumed. The last time I cleaned it, I thought I'd inspect the barrel more closely. I was surprised to see how "subtle" the lands and grooves have become. I compared it to my G19 and noticed a significant difference. I guess it's time to replace the barrel in the G30. Does anyone have recommendations? This is for target shooting and defense. I don't plan on competitive shooting. Thanks in advance!