I had been disappointed with accuracy results from a 30-06 savage take off barrel. I gave it a good cleaning using Bore Tech Eliminator and a Nylon bore brush. Yesterday, I got out to the range and got a 1/2" group with the barrel. The only thing I can say is I didn't realize how bad the bore was fouled. When cleaning, I followed the directions and the patches just kept coming out with blue stain. I had visions of having to buy a new aftermarket barrel. I now have 3 take off barrels( 270, 7mm Mag, 30-06) and in time will give them all a going over.