Aftermarket .22 Barrel

I'm using a cold hammer forged TJ barrel. Lots of guys use them. I dont think there is any barrel available for airguns in that caliber with a rate that fast. Most manufacturers and barrel makers are learning that something around 1:22 is a good compromise for slugs and pellets. While slugs/heavier pellets need a slower rate than that. My pellet barrel is 1:18