Badger barrels were being marketed by American Barrel Company last year, but it appears to have fell through, as American Barrel Co had a website, but it is no longer in existence. Badger Barrels website, in the shotgun section is remarkably similiar, so I would assume they are now marketing the barrels themselves.
http://www.badgerbarrelsinc.com/ShotGBarrles.htmUnless things have changed, Cabelas doesn't plan to carry them. They carried them last year, and I tried to order one for an 1100, but they were out of stock, and told me that they didn't plan on carrying them anymore, because American Barrel Company couldn't supply the number of barrels they wanted. Perhaps it will change now if Badger is marketing them themselves, don't know.
Sportsmans Guide currently is carrying them under the 'Badger' name:
http://www.sportsmansguide.com/net/cb/cb.aspx?a=359196I cannot tell you anything about the barrels, except that I had extended conversations last summer with the gentleman from American Barrel Company that was marketing them, and they appear to be a very good, high quality barrel, but I have no experience with them.
The faster twist will have no negative effects on the slower moving slugs you want to use. The claim is, that a faster twist is needed to stabilize slugs traveling over 1900 FPS, but I'm not really buying it, as Savages bolt gun has a 1 in 35 twist, and has a reputation for shooting those faster slugs very well. In rifles, a faster twist is needed to stabilize longer, heavier bullets in a given caliber, and spinning a shorter, lighter bullet faster creates no negative effects. They are trying to correlate the same theory to shotgun slugs, but I'm not buying it, as I don't think any of the shotgun slugs are fast enough in relation to rifle bullets for a 1 in 34/35 twist to be a disadvantage. But it's a good marketing ploy if you can get people to believe it and buy another slug barrel with a faster twist.
Just my personal thoughts and opinions.l