I've been shooting T/C guns for years mainly as handguns for silhouette competition. I would recommend looking into MGM Match Grade Machine formally Virgin Valley Guns barrels
as far as a quality product and a faster turn around time then others. Bullberry, OTT and McGowen ( although Mc Gowen doesn't install the lug themselves yet) are all going to give you something you will be very happy with.
What I"ve found is that the factory barrels can be more picky as far as what powder and bullets shoot well in them as custom barrels need less testing to get a good load.
If you want convince yourself you want a custom barrel go to Mike Bellm's site Bellm TCs, Inc. - Accuracy Trouble Shooting
he really dislikes factory barrels and has some stories to tell.
I've had very good luck with all the factory barrels. The T/C Custom shop does an outstanding bluing job, they almost look more like a polished silver.
You may want to check with Ed's Contenders and see if he has something on hand if you want a factory barrel, nice guy to do business with. edstc.com