These two rifles are top sellers for Thompson Center. In fact they did away with the old model the Black Diamond XR because it could not compete in sales. The Omega is a standard that many other companies modeled rifles after. CVA & Traditions both offer models very similar to the Omega. Why? because it is that great of a rifle. But Thompson Center wanted to make it better. Some complaints about the Omega is the small trigger guard. Anyone hunting in cold weather with gloves on knows what that means. So the Triumph has a more generous trigger area for the gloved shooters. Also the Triumph went with the speed breech plug. The Omega does not have the speed breech. Both are going to shoot real good. The Weather shield is to help those that hunt in rain and snow and can not get to the rifle quickly to wipe them down at the end of the day. Both are going to work if you carry a cloth and some gun oil. Stainless barrels are great barrels. They shoot great, and are easy to see fowling in. Also they are more prone not to rust quickly. They are STAIN LESS. But they will still stain and rust if not cared for...

Personally with all I have read and heard on the two, I would be after the Triumph. Although the Omega fits me better and I like the stock more. I am sure I could get used to the Triumph. I still shoot a Black Diamond XR....