Here's my Remington 700 take-off barrel chambered in 300 Remington Ultra Magnum. It is stainless steel, has Remington's TriNyte finish and 26" long. It is used and in good condition with less than 100 rounds threw it. The barrel shot .5 to .75moa with factory and reloaded ammo.
It also has a Williams muzzle brake installed. It has five ports on each side with smaller ports on top. It does not have any ports on the bottom, so it does not blow debris all over when shooting prone. The brake does a good job of taking the edge off this big magnum.
The brake cost $195 installed ($95 for the brake and $100 in labor). So I will let this go for $200 delivered to your door.
Price lowered to $175 OBO!!
Here's a few pics....