Pedersoli makes one its available at Cabela's. I think its called the Kodiak double rifle. It is available in several different calibers. All of them are percussion sidelocks I think. I know they are legal in TX. Check with your local warden. I always try to get info from the local game warden rather than call the state. The local guy is always good to know, they are a wealth of information and who knows when you might need his help.