Shawn: I just use Hoppe's #9. It has always worked for me. If you have copper fouling, just leave the Hoppe sit in your barrel for about 5 minutes and then use a good brass bristle brush or a Tornado brush and it will clean it right up. I believe the 'chrome' is actually chrome molybidum (?) steel and hard. Your Sweets won't hurt it, neither will any other type of bore cleaner. I've had pistols and rifles with the 'chrome' bores and no matter what I use on them, they just come clean. You should not worry, that barrel will hold up for a looooong time. Mikey.
